New Miniature Narrow Band Microstrip Diplexer for Recent Wireless Communications

被引：13

作者：

Al-Majdi, Kadhum ^{[1
]}

Mezaal, Yaqeen Sabah ^{[2
]}

机构：

[1] Ashur Univ Coll, Med Instrumentat Engn Dept, Baghdad 10071, Iraq

[2] Al Esraa Univ Coll, Med Instrumentat Engn Dept, Baghdad 10071, Iraq

来源：

ELECTRONICS | 2023年 / 12卷 / 03期

关键词：

microstrip; diplexer; UIR; SIR; Kappa substrate; negative group delay; narrow bands; DESIGN;

D O I：

10.3390/electronics12030716

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Using Kappa substrate material, a compact microstrip diplexer is developed in this research with two separate channels based on the coupled junction and two bandpass filters functioning in independent frequency bands. Each filter comprises an input/output feed line and a number of resonators with different impedances. The diplexer's frequency response was modeled and optimized using the Sonnet EM solver. At 2.84 and 4.08 GHz for TX/RX channels, the insertion loss is better than 1 dB for both channels, while the return loss values are 21.2 and 17 dB for transmit and receive filters, respectively. The microstrip diplexer has miniature dimensions of 24 mm x 18 mm with highly narrow bands and band isolation of more than 35 dB. The simulated scattering parameters are in agreement with the measured ones.

引用

页数：13

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