Dual-band-rejection filter for distortion reduction in RF transmitters

Hiromitsu Uchida; Hirotaka Kamino; Kazuyuki Totani; Naofumi Yoneda; Moriyasu Miyazaki; Yoshihiko Konishi; Shigeru Makino; Jiro Hirokawa; Makoto Ando

doi:10.1109/TMTT.2004.837161

Dual-band-rejection filter for distortion reduction in RF transmitters

Hiromitsu Uchida^*, Hirotaka Kamino, Kazuyuki Totani, Naofumi Yoneda, Moriyasu Miyazaki, Yoshihiko Konishi, Shigeru Makino, Jiro Hirokawa, Makoto Ando

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

82 Citations (Scopus)

Abstract

A novel concept of dual-band-rejection filter (DBKF) is proposed with its circuit synthesis procedure and examples of its j realization with dielectric resonators and microstrip resonators. A DBRF can make two closely spaced rejection bands and a passband between them, with lower loss than a bandpass filter having the same number of resonators and the same frequency selectivity just around the passband. The DBRF can be synthesized by applying novel frequency-variable transformations to a prototype LPF, and its physical size can be smaller than a simple cascade of two conventional band-rejection filters with different rejection bands. The DBRF can be especially applicable to distortion reduction filter in RF transmitters.

Original language	English
Pages (from-to)	2550-2556
Number of pages	7
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	52
Issue number	11
DOIs	https://doi.org/10.1109/TMTT.2004.837161
Publication status	Published - 2004 Nov
Externally published	Yes

Keywords

Bandstop (rejection) filters
Circuit synthesis
Dielectric resonators
Dual band
Microstrip resonators

ASJC Scopus subject areas

Radiation
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/TMTT.2004.837161

Cite this

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abstract = "A novel concept of dual-band-rejection filter (DBKF) is proposed with its circuit synthesis procedure and examples of its j realization with dielectric resonators and microstrip resonators. A DBRF can make two closely spaced rejection bands and a passband between them, with lower loss than a bandpass filter having the same number of resonators and the same frequency selectivity just around the passband. The DBRF can be synthesized by applying novel frequency-variable transformations to a prototype LPF, and its physical size can be smaller than a simple cascade of two conventional band-rejection filters with different rejection bands. The DBRF can be especially applicable to distortion reduction filter in RF transmitters.",

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AU - Uchida, Hiromitsu

AU - Kamino, Hirotaka

AU - Totani, Kazuyuki

AU - Yoneda, Naofumi

AU - Miyazaki, Moriyasu

AU - Konishi, Yoshihiko

AU - Makino, Shigeru

AU - Hirokawa, Jiro

AU - Ando, Makoto

PY - 2004/11

Y1 - 2004/11

N2 - A novel concept of dual-band-rejection filter (DBKF) is proposed with its circuit synthesis procedure and examples of its j realization with dielectric resonators and microstrip resonators. A DBRF can make two closely spaced rejection bands and a passband between them, with lower loss than a bandpass filter having the same number of resonators and the same frequency selectivity just around the passband. The DBRF can be synthesized by applying novel frequency-variable transformations to a prototype LPF, and its physical size can be smaller than a simple cascade of two conventional band-rejection filters with different rejection bands. The DBRF can be especially applicable to distortion reduction filter in RF transmitters.

AB - A novel concept of dual-band-rejection filter (DBKF) is proposed with its circuit synthesis procedure and examples of its j realization with dielectric resonators and microstrip resonators. A DBRF can make two closely spaced rejection bands and a passband between them, with lower loss than a bandpass filter having the same number of resonators and the same frequency selectivity just around the passband. The DBRF can be synthesized by applying novel frequency-variable transformations to a prototype LPF, and its physical size can be smaller than a simple cascade of two conventional band-rejection filters with different rejection bands. The DBRF can be especially applicable to distortion reduction filter in RF transmitters.

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KW - Circuit synthesis

KW - Dielectric resonators

KW - Dual band

KW - Microstrip resonators

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Dual-band-rejection filter for distortion reduction in RF transmitters

Abstract

Keywords

ASJC Scopus subject areas

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