Citation

Yahya, Salah I. and Zubir, Farid and Nouri, Leila and Rezaei, Abbas and Md Jizat, Noorlindawaty (2024) A Novel Ultra-Compact Microstrip Coupler With Low Imbalance Magnitudes and Phases for Wireless Networks. IEEE Access, 12. pp. 99949-99956. ISSN 2169-3536

Text A Novel Ultra-Compact Microstrip Coupler With Low Imbalance Magnitudes and Phases for Wireless Networks.pdf - Published Version Restricted to Repository staff only Download (1MB)

Abstract

Based on stub loaded meandrous coupled lines, a novel microstrip coupler is designed, fabricated and measured for wireless applications. It is very compact with high performance. The size of this coupler is only 0.0028 λg 2 , where it operates at 875 MHz. The values of S11, S21, S31 at the operating frequency are −24.97 dB, −3.058 dB and −3.033 dB respectively. Therefore, the insertion losses are very low and the magnitudes of S21 and S31 are well balanced. The phase imbalance at the operating frequency is 0.5◦ . From 790 MHz up to 1.18 GHz, S11 is better than −10 dB, the maximum phase imbalance is lower than 4.5◦ and the maximum magnitude imbalance is lower that ±0.5 dB. Therefore, it has 40% fractional bandwidth (FBW) that covers 0.79 GHz to 1.18 GHz. Its in-band isolation factor is better than −25 dB. The important advantages of this coupler compared to most of the previous designs is having a filtering frequency response and having flat passbands with a maximum group delay of 1 ns

Item Type:	Article
Uncontrolled Keywords:	Wireless networks, microstrip, ultra-compact, coupler, suppressed harmonics, fractional bandwidth.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television
Divisions:	Faculty of Engineering (FOE)
Depositing User:	Ms Nurul Iqtiani Ahmad
Date Deposited:	31 Jul 2024 03:23
Last Modified:	31 Jul 2024 03:23
URII:	http://shdl.mmu.edu.my/id/eprint/12669

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