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

E Arabi; Markku Lahti; Tauno Vähä-Heikkilä; A Shamim

doi:10.1109/LMWC.2013.2285285

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

E Arabi, Markku Lahti, Tauno Vähä-Heikkilä, A Shamim

King Abdullah University of Science and Technology

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

39 Citations (Scopus)

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)?g) 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

Original language	English
Pages (from-to)	8-10
Journal	IEEE Microwave and Wireless Components Letters
Volume	24
Issue number	1
DOIs	https://doi.org/10.1109/LMWC.2013.2285285
Publication status	Published - 2014
MoE publication type	A1 Journal article-refereed

Keywords

Bandpass filter (BPF)
Low temperature co-fired ceramic (LTCC)
System on package (SoP)

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10.1109/LMWC.2013.2285285

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title = "A 3-D miniaturized high selectivity bandpass filter in LTCC technology",

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)?g) 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",

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AU - Lahti, Markku

AU - Vähä-Heikkilä, Tauno

AU - Shamim, A

PY - 2014

Y1 - 2014

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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)?g) 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

KW - Bandpass filter (BPF)

KW - Low temperature co-fired ceramic (LTCC)

KW - System on package (SoP)

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DO - 10.1109/LMWC.2013.2285285

M3 - Article

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JO - IEEE Microwave and Wireless Components Letters

JF - IEEE Microwave and Wireless Components Letters

IS - 1

ER -

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

Abstract

Keywords

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