A 3-D miniaturized high selectivity bandpass filter in LTCC technology

Eyad A. Arabi; Markku S. Lahti; Tauno Vähä-Heikkilä; Atif Shamim

doi:10.1109/LMWC.2013.2285285

A 3-D miniaturized high selectivity bandpass filter in LTCC technology

Eyad A. Arabi, Markku S. Lahti, Tauno Vähä-Heikkilä, Atif Shamim

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

40 Scopus citations

Abstract

Transmission zeros are used to improve the roll-off factors of filters but as a consequence, the out-of-band rejection decreases. In this work, an LTCC filter design is presented which employs a series inductor (implemented as a via hole) to improve the out-of-band rejection by introducing a third transmission zero. The filter, designed for GPS band (1.57 GHz), has one of the smallest reported foot prints ((0.063×0.048×0.005)λg) and demonstrates the highest roll off factor (16.7 dB/100 MHz) for this band. With only four LTCC layers, the design is cost effective and thus highly suitable for miniaturized, ultra-thin system-on-package applications. © 2001-2012 IEEE.

Original language	English (US)
Pages (from-to)	8-10
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	24
Issue number	1
DOIs	https://doi.org/10.1109/LMWC.2013.2285285
State	Published - Jan 2014

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01

ASJC Scopus subject areas

Electrical and Electronic Engineering
Condensed Matter Physics

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10.1109/LMWC.2013.2285285

Cite this

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AB - Transmission zeros are used to improve the roll-off factors of filters but as a consequence, the out-of-band rejection decreases. In this work, an LTCC filter design is presented which employs a series inductor (implemented as a via hole) to improve the out-of-band rejection by introducing a third transmission zero. The filter, designed for GPS band (1.57 GHz), has one of the smallest reported foot prints ((0.063×0.048×0.005)λg) and demonstrates the highest roll off factor (16.7 dB/100 MHz) for this band. With only four LTCC layers, the design is cost effective and thus highly suitable for miniaturized, ultra-thin system-on-package applications. © 2001-2012 IEEE.

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A 3-D miniaturized high selectivity bandpass filter in LTCC technology

Abstract

Bibliographical note

ASJC Scopus subject areas

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