Design and Development of a Hybrid-Coupled Waveguide Multiplexer for a Multiband Receiver

被引：46

作者：

Kojima, Takafumi ^{[1
,2
]}

Gonzalez, Alvaro ^{[1
,2
]}

Asayama, Shin'ichiro ^{[1
,2
]}

Uzawa, Yoshinori ^{[1
,3
]}

机构：

[1] Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan

[2] Grad Univ Adv Studies SOKENDAI, Mitaka, Tokyo 1818588, Japan

[3] Natl Inst Informat & Commun Technol, Terahertz Technol Res Ctr, Koganei, Tokyo 1848795, Japan

来源：

IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY | 2017年 / 7卷 / 01期

关键词：

Atacama large millimeter array (ALMA); band-pass filter (BPF); low-noise receiver; submillimeter wave; wave-guide frequency multiplexer; wideband; BAND;

D O I：

10.1109/TTHZ.2016.2627220

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper describes a waveguide hybrid-coupled multiplexer for frequencies around 400 GHz. The designed multiplexer has three bands with 25-GHz bandwidth and no frequency gap between channels. The multiplexer is composed of two identical waveguide branch-line quadrature hybrid couplers and two identical bandpass filters based on waveguide inductive iris windows. In order to find the critical element of the multiplexer, network analysis was carried out using signal flow graphs. The multiplexer was fabricated based on direct machining technology with machining accuracy in the order of a few microns. S-parameters measured with a vector network analyzer show excellent agreement with simulations.

引用

页码：10 / 19

页数：10

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