Performance of stripline-type ferrite coupled line circulators

被引：7

作者：

Queck, CK

Davis, LE

Xie, K

Newsome, K

Climer, B

Priestley, NE

机构：

[1] UMIST, Dept Elect Engn & Elect, Microwave Engn Grp, Manchester M60 1QD, Lancs, England

[2] E2V Technol, Lincoln LN1 1SF, England

来源：

INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING | 2003年 / 13卷 / 03期

关键词：

stripline; nonreciprocal; ferrite coupled line; circulator;

D O I：

10.1002/mmce.10075

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

The normal-mode approach is used to design stripline-type ferrite coupled line circulators with alumina as a substrate and ferrite as a superstrate. The measurements that are taken clearly demonstrate the nonreciprocal behavior of these devices, with an average insertion loss of 5 dB and an isolation of -12 dB. It is found that the three-port circulator has a broader bandwidth (9-14 GHz) than that of the four-port circulator (9-12 GHz), and the hybrid coupler has been identified as the bottleneck in the latter. (C) 2003 Wiley Periodicals, Inc.

引用

页码：173 / 179

页数：7

共 11 条

[1] COUPLED-MODE THEORY ANALYSIS OF DISTRIBUTED NONRECIPROCAL STRUCTURES
AWAI, I
ITOH, T
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1981, 29 (10) : 1077 - 1087
[2] MILLIMETRIC NONRECIPROCAL COUPLED-SLOT FINLINE COMPONENTS
DAVIS, LE
SILLARS, DB
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1986, 34 (07) : 804 - 808
[3] ON THE MODE-COUPLING IN LONGITUDINALLY MAGNETIZED WAVEGUIDING STRUCTURES
MAZUR, J
MROZOWSKI, M
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1989, 37 (01) : 159 - 165
[4] Pozar D. M., 2009, MICROWAVE ENG
[5] LOSSES IN MICROSTRIP
PUCEL, RA
MASSE, DJ
HARTWIG, CP
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1968, MT16 (06) : 342 - &
[6] Broadband hybrid microstrip couplers - Amplitude and phase
Queck, CK
Davis, LE
[J]. MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, 2002, 32 (04) : 254 - 259
[7] Improved design of microstrip air-bridges
Queck, CK
Davis, LE
[J]. INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING, 2003, 13 (03) : 246 - 255
[8] Teoh CS, 1995, IEEE T MICROW THEORY, V43, P2991, DOI 10.1109/22.475665
[9] Design and measurement of microstrip ferrite coupled line circulators
Teoh, CS
Davis, LE
[J]. INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING, 2001, 11 (03) : 121 - 130
[10] Nonreciprocity and the optimum operation of ferrite coupled lines
Xie, K
Davis, LE
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2000, 48 (04) : 562 - 573

← 1 2 →