Tunability and bandwidth of microstrip filters fabricated on magnetized ferrites

被引：6

作者：

León, G ^{[1
]}

Boix, RR ^{[1
]}

Medina, F ^{[1
]}

机构：

[1] Univ Sevilla, Coll Phys, Dept Elect & Electromagnetism, Seville 41012, Spain

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2004年 / 14卷 / 04期

关键词：

bandpass filters; magnetic tuning; microstrip resonators; microwave ferrites;

D O I：

10.1109/LMWC.2004.827109

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：

The method of moments in the spectral domain is applied to the rigorous full-wave analysis of coupled line microstrip filters fabricated on magnetized ferrites. The results show that the center frequency of the filters can be tuned over a wide range by adjusting the magnitude of the bias magnetic field of the ferrite substrates. However, the filters bandwidth is reduced as the tuning frequency increases. This bandwidth reduction is explained in terms of the behavior of the resonant frequencies and quality factors of the resonators included in the filters.

引用

页码：171 / 173

页数：3

共 6 条

[1] Comments on "properties of and generalized full-wave transmission line models for hybrid (bi)(an)isotropic waveguides" [J].

Dmitriev, V .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1999, 47 (05) :655-657

[2] Effect of substrate dielectric anisotropy on the frequency behavior of microstrip circuits [J].

Drake, E ;

Boix, RR ;

Horno, M ;

Sarkar, TK .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2000, 48 (08) :1394-1403

[3] Full-wave analysis of a wide class of microstrip resonators fabricated on magnetized ferrites with arbitrarily oriented bias magnetic field [J].

León, G ;

Boix, RR ;

Medina, F .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2002, 50 (06) :1510-1519

[4] Transmission characteristics of HTS microstrip resonators with a ferrite component [J].

Nurgaliev, T ;

Miteva, S ;

Jenkins, A ;

Dew-Hughes, D .

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2001, 11 (01) :446-449

[5] Magnetically tunable superconducting resonators and filters [J].

Oates, DE ;

Dionne, GF .

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 1999, 9 (02) :4170-4175

[6] MICROSTRIP OPEN-END DISCONTINUITY ON A NONRECIPROCAL FERRITE SUBSTRATE [J].

YANG, HY .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1994, 42 (12) :2423-2428

← 1 →