Narrow-band HTS filter on sapphire substrate

2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535) Pub Date : 2004-06-06 DOI:10.1109/MWSYM.2004.1339178

Jiasheng Hong, E. McErlean

引用次数: 27

Abstract

This paper presents a narrow-band HTS bandpass filter on sapphire substrate for future mobile communications systems. The filter is designed to have a five MHz pass band in the UMTS base stations receive band. The filter exhibits a eight-pole quasi-elliptic function response implemented with a cascaded quadruplet coupling structure. The filter was fabricated on a 0.43 mm-thick sapphire wafer with double-sided YBCO films. The measured filter showed a midband insertion loss of 0.5 dB at 1973 MHz and a return loss better than -15 dB over the pass band. It also exhibited an excellent rejection over the entire UMTS base station transmission band.

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蓝宝石衬底上的窄带高温超导滤波器

提出了一种适用于未来移动通信系统的蓝宝石基板窄带高温超导带通滤波器。该滤波器被设计为在UMTS基站接收频带中具有5mhz通频带。该滤波器具有八极准椭圆函数响应，实现了级联四重态耦合结构。该滤光片被制作在0.43 mm厚的蓝宝石晶片上，并带有双面YBCO薄膜。所测滤波器在1973 MHz时的中带插入损耗为0.5 dB，在通频带上的回波损耗优于-15 dB。它还在整个UMTS基站传输频带上表现出出色的抑制性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535)

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