Special Issues
Table of Content

Advances in 5G Antenna Designs and Systems

Submission Deadline: 30 November 2021 (closed) View: 248

Guest Editors

Engr. Saad Hassan Kiani, City University of Science and Information Technology, Pakistan.
Dr. Mujeeb Abdullah, Bacha Khan University, Charsadda, Pakistan.
Dr. Naeem Ahmad Jan, Iqra National University, Pakistan.
Dr. Azam Mehbon, University of West Australia, Australia.

Summary

5G will support significantly faster mobile broadband speeds, low latency and reliable communications, as well as enabling the full potential of the Internet of Things (IoT). This will open up the possibility for new services such as tactile communications, smart manufacturing and cities, in addition to enhanced broadband connectivity. Pivotal to 5G is the use of the millimeter wave band, which will support a network of small cells enabling hotspot zones of high capacity and area efficiency. The forthcoming 5G system will truly be a mobile multimedia communication platform that constitutes a converged networking arena that not only includes legacy heterogeneous mobile networks, but advanced radio interfaces and the possibility to operate at mm wave frequencies to capitalise on the large swathe of available bandwidth. This will set in place extensive design requirements that even build on the latest 5G roll-out in the sub 6GHz band.

 

Future emerging handsets and base stations will require antenna technology that is multimode in nature, energy efficient, and above all able to operate on the mm wave band in synergy with legacy 4G and sub-6GHz 5G. Antennas should be compact in nature, but with engineering requirements that include increased power, larger bandwidth, higher gain, and insensitivity to the hand-held effect of human users. This requires very innovative solutions in antenna design, which can operate in single and MIMO/Array configuration.

 

This Special Issue aims to bring together academic and industrial researchers to identify and discuss technical challenges and new results related to the design of 5G antennas.


Keywords

• Antenna design techniques and measurement for 5G systems
• Multiple antennas for advanced 5G transceivers
• Multiband 5G antenna
• 5G Dielectric Resonator antennas
• Antennas on flexible substrates for medical applications
• Wearable and implantable antennas
• RFID antennas
• Antennas for wireless power transmission and harvesting
• Reconfigurable antennas and devices
• Mutual coupling and isolation techniques between antenna elements
• UWB antennas
• mmwave antennas
• Origami Antenna
• Chiral Materials

Published Papers


  • Open Access

    ARTICLE

    Triple-Band Metamaterial Inspired Antenna for Future Terahertz (THz) Applications

    Adel Y. I. Ashyap, S. Alamri, S. H. Dahlan, Z. Z. Abidin, M. Inam Abbasi, Huda A. Majid, M. R. Kamarudin, Y. A. Al-Gumaei, M. Hashim Dahri
    CMC-Computers, Materials & Continua, Vol.72, No.1, pp. 1071-1087, 2022, DOI:10.32604/cmc.2022.025636
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract For future healthcare in the terahertz (THz) band, a triple-band microstrip planar antenna integrated with metamaterial (MTM) based on a polyimide substrate is presented. The frequencies of operation are 500, 600, and 880 GHz. The triple-band capability is accomplished by etching metamaterial on the patch without affecting the overall antenna size. Instead of a partial ground plane, a full ground plane is used as a buffer to shield the body from back radiation emitted by the antenna. The overall dimension of the proposed antenna is 484 × 484 μm2. The antenna's performance is investigated based on different crucial factors,… More >

  • Open Access

    ARTICLE

    Directional Wideband Wearable Antenna with Circular Parasitic Element for Microwave Imaging Applications

    N. A. Koma'rudin, Z. Zakaria, A. A. Althuwayb, H. Lago, H. Alsariera, H. Nornikman, A. J. A. Al-Gburi, P. J. Soh
    CMC-Computers, Materials & Continua, Vol.72, No.1, pp. 983-998, 2022, DOI:10.32604/cmc.2022.024782
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract This work proposes a wideband and unidirectional antenna consisting of dual layer of coplanar waveguide based on the circular parasitic element technique. The design procedure is implemented in three stages: Design A, which operates at 3.94 GHz with a bandwidth of 3.83 GHz and a fractional bandwidth (FBW) of 97.2%; Design B, which operates at 3.98 GHz with a bandwidth of 0.66 GHz (FBW of 56.53%); and Design C as the final antenna. The final Design C is designed to resonate at several frequencies between 2.89 and 7.0 GHz for microwave imaging applications with a More >

  • Open Access

    ARTICLE

    Compact Multibeam Array with Miniaturized Butler Matrix for 5G Applications

    Suleiman A. Babale, Muhammad K. Ishfaq, Ali Raza, Jamal Nasir, Ahmad Fayyaz, Umer Ijaz
    CMC-Computers, Materials & Continua, Vol.72, No.1, pp. 925-937, 2022, DOI:10.32604/cmc.2022.024711
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract This paper presents the design and implementation of a miniaturized beam steering network that produces broadside beams when it is fed with a compact antenna array. Butler Matrix (BM) was used as the beam steering network. It was completely built from a miniaturized 3 dB hybrid-couplers in planar microstrip technology. It was configured by feeding the BM with a Planar Inverted-E Antenna (PIEA) array separated at 0.3 λ as against the 0.5 λ separation. This makes the BM produce a major radiation pattern at the broadside. Apart from the miniaturization, no modification was made from the More >

  • Open Access

    ARTICLE

    A Compact 28 GHz Millimeter Wave Antenna for Future Wireless Communication

    Shahid Khan, Adil Bashir, Haider Ali, Abdul Rauf, Mohamed Marey, Hala Mostafa, Ikram Syed
    CMC-Computers, Materials & Continua, Vol.72, No.1, pp. 301-314, 2022, DOI:10.32604/cmc.2022.023397
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract This article presents a novel modified chuck wagon dinner bell shaped millimeter wave (mm-wave) antenna at 28 GHz. The proposed design has ultra-thin Rogers 5880 substrate with relative permittivity of 2.2. The design consists of T shaped resonating elements and two open ended side stubs. The desired 28 GHz frequency response is achieved by careful parametric modeling of the proposed structure. The maximum achieved single element gain at the desired resonance frequency is 3.45 dBi. The efficiency of the proposed design over the operating band is more than 88%. The impedance bandwidth achieved for −10 More >

  • Open Access

    ARTICLE

    Low-Cost Flexible Graphite Monopole Patch Antenna for Wireless Communication Applications

    Suwat Sakulchat, Amnoiy Ruengwaree, Voranuch Thongpool, Watcharaphon Naktong
    CMC-Computers, Materials & Continua, Vol.71, No.3, pp. 6069-6088, 2022, DOI:10.32604/cmc.2022.024050
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract This research investigates a monopole patch antenna for Wi-Fi applications at 2.45 and 5.2 GHz, and WiMax at 3.5 GHz. A low-cost and flexible graphite sheet with good conductivity, base on graphite conductive powder and glue is used to create a radiator patch and ground plane. Instead of commercially available conductive inks or graphite sheets, we use our self-produced graphite liquid to create the graphite sheet because it is easy to produce and inexpensive. The antenna structure is formed using a low-cost and easy hand-screen printing approach that involved placing graphite liquid on a bendable… More >

  • Open Access

    ARTICLE

    AMC Integrated Multilayer Wearable Antenna for Multiband WBAN Applications

    Iqra Aitbar, Nosherwan Shoaib, Akram Alomainy, Abdul Quddious, Symeon Nikolaou, Muhammad Ali Imran, Qammer H. Abbasi
    CMC-Computers, Materials & Continua, Vol.71, No.2, pp. 3227-3241, 2022, DOI:10.32604/cmc.2022.023008
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract In this paper, a compact, efficient and easy to fabricate wearable antenna integrated with Artificial Magnetic Conductor (AMC) is presented. Addition of slots and bevels/cuts in the rectangular monopole patch antenna yield a wide bandwidth along with band notches. The proposed antenna is backed with an AMC metasurface that changes the bidirectional radiation pattern to a unidirectional, thus, considerably reducing the Specific Absorption Ratio (SAR). The demonstrated antenna has a good coverage radiating away from the body and presents reduced radiation towards the body with a front-to-back ratio of 13 dB and maximum gain of… More >

  • Open Access

    ARTICLE

    Metamaterial-Based Compact Antenna with Defected Ground Structure for 5G and Beyond

    Md. Mushfiqur Rahman, Md. Shabiul Islam, Mohammad Tariqul Islam, Samir Salem Al-Bawri, Wong Hin Yong
    CMC-Computers, Materials & Continua, Vol.71, No.2, pp. 2383-2399, 2022, DOI:10.32604/cmc.2022.022150
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract In this paper, a unit cell of a single-negative metamaterial structure loaded with a meander line and defected ground structure (DGS) is investigated as the principle radiating element of an antenna. The unit cell antenna causes even or odd mode resonances similar to the unit cell structure depending on the orientation of the microstrip feed used to excite the unit cell. However, the orientation which gives low-frequency resonance is considered here. The unit cell antenna is then loaded with a meander line which is parallel to the split bearing side and connects the other two… More >

  • Open Access

    ARTICLE

    Gain Enhancement of Dielectric Resonator Antenna Using Electromagnetic Bandgap Structure

    Amor Smida
    CMC-Computers, Materials & Continua, Vol.71, No.1, pp. 1613-1623, 2022, DOI:10.32604/cmc.2022.022289
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract High gain antennas are highly desirable for long-range wireless communication systems. In this paper, a compact, low profile, and high gain dielectric resonator antenna is proposed, fabricated, experimentally tested, and verified. The proposed antenna system has a cylindrical dielectric resonator antenna with a height of 9 mm and a radius of 6.35 mm as a radiating element. The proposed dielectric resonator antenna is sourced with a slot while the slot is excited with a rectangular microstrip transmission line. The microstrip transmission line is designed for a 50 Ω impedance to provide maximum power to the… More >

  • Open Access

    ARTICLE

    Ultra-Wideband Annular Ring Fed Rectangular Dielectric Resonator Antenna for Millimeter Wave 5G Applications

    Abinash Gaya, Mohd. Haizal Jamaluddin, Ayman A. Althuwayb
    CMC-Computers, Materials & Continua, Vol.71, No.1, pp. 1331-1348, 2022, DOI:10.32604/cmc.2022.022041
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract In this article an ultra-wideband rectangular Dielectric Resonator Antenna is designed for millimeter wave 5G frequency band applications. Indoor 5G communications require antenna system with wide bandwidth and high efficiency to enhance the throughput in the channel. To fulfill such requirements a Dielectric Resonator Antenna (DRA) is designed here which has achieved an ultra-wide bandwidth of 20.15% (22.32–27.56 GHz) which is 5.24 GHz of bandwidth centered at 26 GHz as resonating frequency. This covers the complete band 30 (24.3–27.5 GHz) of 5G spectrum. 26 and 28 GHz are considered as most popular frequencies in millimeter… More >

  • Open Access

    ARTICLE

    Beamforming Performance Analysis of Millimeter-Wave 5G Wireless Networks

    Omar A. Saraereh, Ashraf Ali
    CMC-Computers, Materials & Continua, Vol.70, No.3, pp. 5383-5397, 2022, DOI:10.32604/cmc.2022.021724
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract With the rapid growth in the number of mobile devices and user connectivity, the demand for higher system capacity and improved quality-of-service is required. As the demand for high-speed wireless communication grows, numerous modulation techniques in the frequency, temporal, and spatial domains, such as orthogonal frequency division multiplexing (OFDM), time division multiple access (TDMA), space division multiple access (SDMA), and multiple-input multiple-output (MIMO), are being developed. Along with those approaches, electromagnetic waves’ orbital angular momentum (OAM) is attracting attention because it has the potential to boost the wireless communication capacity. Antenna electromagnetic radiation can be… More >

  • Open Access

    ARTICLE

    Ultra-wideband Frequency Selective Surface for Communication Applications

    Shahid Habib, Ghaffer Iqbal Kiani, Muhammad Fasih Uddin Butt, Syed Muzahir Abbas, Abdulah Jeza Aljohani, Soon Xin Ng
    CMC-Computers, Materials & Continua, Vol.70, No.3, pp. 6177-6187, 2022, DOI:10.32604/cmc.2022.021644
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract A low-profile ultra-wideband (UWB) band-stop frequency selective surface (FSS) is designed for S-, C-, X- and Ku-bands communication applications. The FSS is constructed by using square and circular loop elements printed on the top and bottom sides of the RO3210 substrate. The FSS has been designed to reduce the electromagnetic interference (EMI) as well as to mitigate the harmful effects of electromagnetic radiation on the human body caused by different radio devices. The dimension and size of the UWB FSS have been reduced to 0.12 λ × 0.12 λ and 90%, respectively, as compared to More >

  • Open Access

    ARTICLE

    A Compact Tri-Band Antenna Based on Inverted-L Stubs for Smart Devices

    Niamat Hussain, Anees Abbas, Sang-Myeong Park, Seong Gyoon Park, Nam Kim
    CMC-Computers, Materials & Continua, Vol.70, No.2, pp. 3321-3331, 2022, DOI:10.32604/cmc.2022.020688
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract We designed and constructed a novel, compact tri-band monopole antenna for intelligent devices. Multiband behavior was achieved by placing inverted-L shaped stubs of various lengths in a triangular monopole antenna fed by a coplanar waveguide. The resonance frequency of each band can be controlled by varying the length of the corresponding stub. Three bands, at 2.4 (2.37–2.51), 3.5 (3.34–3.71), and 5.5 (4.6–6.4) GHz, were easily obtained using three stubs of different lengths. For miniaturization, a portion of the longest stub (at 2.4 GHz) was printed on the opposite side of the substrate, and connected to More >

  • Open Access

    REVIEW

    Reconfigurable Pattern Patch Antenna for Mid-Band 5G: A Review

    Siti Rahena Isa, Muzammil Jusoh, Thennarasan Sabapathy, Jamel Nebhen, Muhammad Ramlee Kamarudin, Mohamed Nasrun Osman, Qammer Hussain Abbasi, Hasliza A. Rahim, Mohd Najib Mohd Yasin, Ping Jack Soh
    CMC-Computers, Materials & Continua, Vol.70, No.2, pp. 2699-2725, 2022, DOI:10.32604/cmc.2022.019769
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract New requirements in communication technologies make it imperative to rehash conventional features such as reconfigurable antennas to adapt with the future adaptability advancements. This paper presents a comprehensive review of reconfigurable antennas, specifically in terms of radiation patterns for adaptation in the upcoming Fifth Generation (5G) New Radio frequency bands. They represent the key of antenna technology for materializing a high rate transmission, increased spectral and energy efficiency, reduced interference, and improved the beam steering and beam shaping, thereby land a great promise for planar antennas to boost the mid-band 5G. This review begins with… More >

  • Open Access

    ARTICLE

    High Gain of UWB Planar Antenna Utilising FSS Reflector for UWB Applications

    Ahmed Jamal Abdullah Al-Gburi, Imran Bin Mohd Ibrahim, Zahriladha Zakaria, Badrul Hisham Ahmad, Noor Azwan Bin Shairi, Mohammed Yousif Zeain
    CMC-Computers, Materials & Continua, Vol.70, No.1, pp. 1419-1436, 2022, DOI:10.32604/cmc.2022.019741
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract In this paper, a high gain and directional coplanar waveguide (CPW)-fed ultra-wideband (UWB) planar antenna with a new frequency selective surface (FSS) unit cells design is proposed for UWB applications. The proposed UWB antenna was designed based on the Mercedes artistic-shaped planar (MAP) antenna. The antenna consisted of a circular ring embedded with three straight legs for antenna impedance bandwidth improvement. The modelled FSS used the integration of a two parallel conductive metallic patch with a circular loop structure. The FSS provided a UWB stopband filter response covering a bandwidth of 10.5 GHz, for frequencies… More >

  • Open Access

    ARTICLE

    Helix Inspired 28 GHz Broadband Antenna with End-Fire Radiation Pattern

    Hijab Zahra, Wahaj Abbas Awan, Niamat Hussain, Syed Muzahir Abbas, Subhas Mukhopadhyay
    CMC-Computers, Materials & Continua, Vol.70, No.1, pp. 1935-1944, 2022, DOI:10.32604/cmc.2022.019495
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract This paper presents the design and characterization of a via free planar single turn helix for 28 GHz broadband applications. The proposed antenna is designed using ROGERS RO4003 material, having a simple structure and end-fire radiation pattern. The antenna comprises of a compact dimension of 1.36 λ0 × 0.9 λ0 with a thickness of 0.0189 λ0 (where λ0 is the free-space wavelength at the central frequency of 28 GHz). Parametric study has been carried out to investigate the impact of key design parameters and to achieve an optimum design. Results show a good agreement between the simulated… More >

  • Open Access

    ARTICLE

    Ambiguity Resolution in Direction of Arrival Estimation with Linear Antenna Arrays Using Differential Geometry

    Alamgir Safi, Muhammad Asghar Khan, Fahad Algarni, Muhammad Adnan Aziz, M. Irfan Uddin, Insaf Ullah, Tanweer Ahmad Cheema
    CMC-Computers, Materials & Continua, Vol.70, No.1, pp. 581-599, 2022, DOI:10.32604/cmc.2022.018963
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract Linear antenna arrays (LAs) can be used to accurately predict the direction of arrival (DOAs) of various targets of interest in a given area. However, under certain conditions, LA suffers from the problem of ambiguities among the angles of targets, which may result in misinterpretation of such targets. In order to cope up with such ambiguities, various techniques have been proposed. Unfortunately, none of them fully resolved such a problem because of rank deficiency and high computational cost. We aimed to resolve such a problem by proposing an algorithm using differential geometry. The proposed algorithm… More >

  • Open Access

    ARTICLE

    An AMC-Based Circularly Polarized Antenna for 5G sub-6 GHz Communications

    Hussain Askari, Niamat Hussain, Domin Choi, Md. Abu Sufian, Anees Abbas, Nam Kim
    CMC-Computers, Materials & Continua, Vol.69, No.3, pp. 2997-3013, 2021, DOI:10.32604/cmc.2021.018855
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract This paper presents an AMC (artificial magnetic conductor)-based wideband circularly polarized printed monopole antenna for unidirectional radiation. The antenna includes an AMC reflector, a coplanar waveguide (CPW) feed structure to excite the antenna, a ground plane with a rectangular slot on the left side of feedline, and an asymmetrical ground plane on its right side. The induced surface currents on CWP feedline, rectangularly slotted, and asymmetrical ground planes cause circularly polarized radiations. The AMC reflector consisting periodic metallic square patches is used instead of the conventional PEC (perfect electric conductor) reflector, the distance between the More >

  • Open Access

    ARTICLE

    Design of a Five-Band Dual-Port Rectenna for RF Energy Harvesting

    Surajo Muhammad, Jun Jiat Tiang, Sew Kin Wong, Jamel Nebhen, Amjad Iqbal
    CMC-Computers, Materials & Continua, Vol.69, No.1, pp. 487-501, 2021, DOI:10.32604/cmc.2021.018292
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract This paper proposed the design of a dual-port rectifier with multi-frequency operations. The RF rectifier is achieved using a combination of L-section inductive impedance matching network (IMN) at Port-1 with a multiple stubs impedance transformer at Port-2. The fabricated prototype can harvest RF signal from GSM/900, GSM/1800, UMTS/2100, Wi-Fi/2.45 and LTE/2600 frequency bands at (0.94, 1.80, 2.10, 2.46, and 2.63 GHz), respectively. The rectifier occupies a small portion of a PCB board at 0.20 λg × 0.15 λg. The proposed circuit realized a measured peak RF-to-dc (radio frequency direct current) power conversion efficiency (PCE) of… More >

  • Open Access

    ARTICLE

    Frequency Reconfigurable Antenna for Portable Wireless Applications

    Shakir Ullah, Sadiq Ullah, Inzamam Ahmad, Wasi Ur Rehman Khan, Toufeeq Ahmad, Usman Habib, Mahmoud A. Albreem, Mohammed H. Alsharif, Peerapong Uthansakul
    CMC-Computers, Materials & Continua, Vol.68, No.3, pp. 3015-3027, 2021, DOI:10.32604/cmc.2021.015549
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract In this paper, the design and experimental evaluation of a hexagonal-shaped coplanar waveguide (CPW)-feed frequency reconfigurable antenna is presented using flame retardant (FR)-4 substrate with size of 37 × 35 × 1.6 mm3. The antenna is made tunable to three different modes through the status of two pin diodes to operate in four distinct frequency bands, i.e., 2.45 GHz wireless fidelity (Wi-Fi) in MODE 1, 3.3 GHz (5G sub-6 GHz band) in MODE 2, 2.1 GHz (3G Long Term Evolution (LTE)-advanced) and 3.50 GHz Worldwide Interoperability for Microwave Access (WiMAX) in MODE 3. The optimization through… More >

  • Open Access

    ARTICLE

    Reconfigurable Compact Wideband Circularly Polarised Dielectric Resonator Antenna for Wireless Applications

    Shahid Khan, Xin Cheng Ren, Haider Ali, Camel Tanougast, Abdul Rauf, Safdar Nawaz Khan Marwat, Muhammad Rizwan Anjum
    CMC-Computers, Materials & Continua, Vol.68, No.2, pp. 2095-2109, 2021, DOI:10.32604/cmc.2021.016811
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract In this work, a novel compact wideband reconfigurable circularly polarised (CP) dielectric resonator antenna (DRA) is presented. The L-shaped Dielectric resonator antenna is excited by an inverted question mark shaped feed. This arrangement of feed-line helps to generate two orthogonal modes inside the DR, which makes the design circularly polarised. A thin micro-strip line placed on the defected ground plane not only helps to generate a wideband response but also assist in the positioning of the two diode switches. These switches located at the left and right of the micro-strip line helps in performing two… More >

  • Open Access

    ARTICLE

    Single-Layer Wideband Circularly Polarized Antenna Using Non-Uniform Metasurface for C-band Applications

    Huy Hung Tran, Khoa Nguyen-Dang, Niamat Hussain
    CMC-Computers, Materials & Continua, Vol.68, No.2, pp. 2487-2498, 2021, DOI:10.32604/cmc.2021.016027
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract A single-layer design of non-uniform metasurface (MS) based circularly polarized (CP) antenna with wideband operation characteristic is proposed and investigated in this paper. The antenna is excited by a truncated corner squared patch as a primary radiating CP source. Then, a non-uniform MS is placed in the same layer with the driven patch. Besides increasing the impedance bandwidth, the non-uniform MS also generates two additional CP bands in the high frequency band, leading to significantly increase the antenna’s overall performances. The use of non-uniform MS distinguishes our design from the other CP MS based antennas… More >

  • Open Access

    ARTICLE

    Resonator Rectenna Design Based on Metamaterials for Low-RF Energy Harvesting

    Watcharaphon Naktong, Amnoiy Ruengwaree, Nuchanart Fhafhiem, Piyaporn Krachodnok
    CMC-Computers, Materials & Continua, Vol.68, No.2, pp. 1731-1750, 2021, DOI:10.32604/cmc.2021.015843
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract In this paper, the design of a resonator rectenna, based on metamaterials and capable of harvesting radio-frequency energy at 2.45 GHz to power any low-power devices, is presented. The proposed design uses a simple and inexpensive circuit consisting of a microstrip patch antenna with a mushroom-like electromagnetic band gap (EBG), partially reflective surface (PRS) structure, rectifier circuit, voltage multiplier circuit, and 2.45 GHz Wi-Fi module. The mushroom-like EBG sheet was fabricated on an FR4 substrate surrounding the conventional patch antenna to suppress surface waves so as to enhance the antenna performance. Furthermore, the antenna performance More >

  • Open Access

    ARTICLE

    A Compact Dual-Port Multi-Band Rectifier Circuit for RF Energy Harvesting

    Surajo Muhammad, Jun Jiat Tiang, Sew Kin Wong, Amjad Iqbal, Amor Smida, Mohamed Karim Azizi
    CMC-Computers, Materials & Continua, Vol.68, No.1, pp. 167-184, 2021, DOI:10.32604/cmc.2021.016133
    (This article belongs to the Special Issue: Advances in 5G Antenna Designs and Systems)
    Abstract This paper presents a compact multi-band rectifier with an improved impedance matching bandwidth. It uses a combination of п–matching network (MN) at Port-1, with a parallel connection of three cell branch MN at Port-2. The proposed impedance matching network (IMN) is adopted to reduce circuit complexity, to improve circuit performance, and power conversion efficiency (PCE) of the rectifier at low input power. The fabricated rectifier prototype operates at 0.92, 1.82, 2.1, 2.46 and 2.65 GHz covering GSM/900, GSM/1800, UMTS2100, and Wi-Fi/2.45–LTE2600. The size of the compact rectifier on the PCB board is 0.13λg × 0.1λg. The… More >

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