Abir Zaidi¹, Esraa Mousa Ali², Abdullah G. Alharbi³, Salah Ud-Din Khan⁴, Mohammad Alsharef⁵, Mohammed S. Alzaidi⁵, Sherif S. M. Ghoneim^5,*

CMC-Computers, Materials & Continua, Vol.73, No.2, pp. 3861-3877, 2022, DOI:10.32604/cmc.2022.029889

Abstract The article presents a miniaturized monopole antenna dedicated to modern flexible electronic systems. The antenna combines three fundamental properties in a single structure. Firstly, it is characterized by a compact size compared to the state-of-the-art literature with an overall size of 18 × 18 × 0.254 mm³, secondly, the proposed antenna integrates the reconfigurability function of frequency, produced by means of a Positive-Intrinsic-Negative (PIN) diode introduced into the radiating element. Thus, the antenna is able to switch between different frequencies and different modes, making it suitable to meet the ever-changing demands of communication systems. third, the antenna is equipped by the property of flexibility.… More >

Sk Raziul Ahasan¹, Kaisarul Islam¹, Mohammad Monirujjaman Khan^1,*, Mehedi Masud², Gurjot Singh Gaba³, Hesham A. Alhumyani⁴

Computer Systems Science and Engineering, Vol.40, No.2, pp. 673-689, 2022, DOI:10.32604/csse.2022.019585

Abstract In this paper, a novel and compact ultra-wideband (UWB) antenna with band-notched characteristics for body-centric communication is examined and implemented. The shape of the designed antenna looks like a ‘swan’ with a slotted patch. The performance parameters of this antenna for both the free space and on-body scenario for body-centric communication are analyzed and investigated through the simulation process using Computer Simulation Technology (CST). This antenna can avoid the interference caused by Wireless Local Area Network (WLAN) (5.15–5.825 GHz) and Worldwide Interoperability for Microwave Access (WiMAX) (5.25–5.85 GHz) systems with a band notch because of newly designed UWB antenna is… More >

Qazwan Abdullah^1,2,*, Ömer Aydoĝdu², Adeeb Salh³, Nabil Farah⁴, Md Hairul Nizam Talib⁴, Taha Sadeq⁵, Mohammed A. A. Al-Mekhalfi³, Abdu Saif⁶

CMC-Computers, Materials & Continua, Vol.69, No.3, pp. 4025-4042, 2021, DOI:10.32604/cmc.2021.018798

Abstract The multilayer structure is a promising technique used to minimize the size of planar microstrip filters. In the flexible design and incorporation of other microwave components, multilayer band-pass filter results in better and enhanced dimensions. This paper introduces a microstrip fifth-generation (5G) low-frequency band of 2.52–2.65 GHz using a parallel-coupled line (PCL) Bandpass filter and multilayer (ML) hairpin Bandpass filter. The targeted four-pole resonator has a center frequency of 2.585 GHz with a bandwidth of 130 MHz. The filters are designed with a 0.1 dB passband ripple with a Chebyshev response. The hairpin-line offers compact filter design structures. Theoretically, they… More >