High isolation and compact size microstrip hairpin diplexer

被引：102

作者：

Srisathit, S ^{[1
]}

Patisang, S

Phromloungsri, R

Bunnjaweht, S

Kosulvit, S

Chongcheawchamnan, M

机构：

[1] Mahanakorn Univ Technol, Res Ctr Electromagnet Wave Applicat, Bangkok 10530, Thailand

[2] Kings Mongkut Inst Technol, Ladkrabang, Thailand

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2005年 / 15卷 / 02期

关键词：

diplexer; hairpin filter; resonator; spurious response; stepped impedance coupled line;

D O I：

10.1109/LMWC.2004.842839

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：

Since conventional microstrip hairpin filter and diplexer are inherently formed by coupled-line resonators, spurious response and poor isolation performance are unavoidable. This letter presents a simple technique that is suitable for an inhomogeneous structure such as microstrip to cure such poor performances. The technique is based on the stepped impedance coupled-line resonator and is verified by the experimental results of the designed 0.9 GHz/1.8 GHz microstrip hairpin diplexer.

引用

页码：101 / 103

页数：3

共 7 条

[1] HAIRPIN-LINE AND HYBRID HAIRPIN-LINE HALF-WAVE PARALLEL-COUPLED-LINE FILTERS
CRISTAL, EG
FRANKEL, S
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1972, MT20 (11) : 719 - &
[2] PARALLEL COUPLED MICROSTRIP FILTER WITH PHASE DIFFERENCE COMPENSATION
DENIS, S
PERSON, C
TOUTAIN, S
THERON, B
VIGNERON, S
[J]. ELECTRONICS LETTERS, 1995, 31 (22) : 1927 - 1928
[3] MULTIPLEXER CHANNEL-SEPARATING UNITS USING INTERDIGITAL AND PARALLEL-COUPLED FILTERS
MATTHAEI, GL
CRISTAL, EG
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1965, MT13 (03) : 328 - &
[4] Matthaei L.Y. E. M. T. J. L., 1980, Microwave Filters, Impedance-Matching Networks, and Coupling Structures
[5] Novel 2-D photonic bandgap structure for microstrip lines
Radisic, V
Qian, YX
Coccioli, R
Itoh, T
[J]. IEEE MICROWAVE AND GUIDED WAVE LETTERS, 1998, 8 (02): : 69 - 71
[6] Wide-band low-loss high-isolation microstrip periodic-stub diplexer for multiple-frequency applications
Strassner, B
Chang, K
[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2001, 49 (10) : 1818 - 1820
[7] Toutain Y, 2002, MIKON-2002: XIV INTERNATIONAL CONFERENCE ON MICROWAVES, RADAR AND WIRELESS COMMUNICATIONS, VOLS 1-3, PROCEEDINGS, P187, DOI 10.1109/MIKON.2002.1017831

← 1 →