A mixed-signal matching state search based adaptive antenna tuning IC

Hang Song; James Aberle; Bertan Bakkaloglu

doi:10.1109/LMWC.2010.2061222

A mixed-signal matching state search based adaptive antenna tuning IC

Hang Song, James Aberle, Bertan Bakkaloglu

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

8 Scopus citations

Abstract

A closed-loop adaptive antenna tuning unit operating from 850 MHz-2 GHz for multi-band, multi-mode radios is presented. Unlike previous approaches, the proposed module utilizes an analog mismatch detector and a closed-loop mixed-signal matching state search circuit, without the need for an A/D converter. The integrated module is designed and fabricated on a 0.18 μm CMOS process. When tested on a band-limited shorted patch antenna, the module can perform a scan of 4096 antenna matching states in 4.1 ms, and tune the antenna to a specified narrow instantaneous bandwidth over the entire frequency range.

Original language	English (US)
Article number	5594754
Pages (from-to)	581-583
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	20
Issue number	10
DOIs	https://doi.org/10.1109/LMWC.2010.2061222
State	Published - Oct 2010

Keywords

Analog processing
antenna tuning unit
impedance matching
reconfigurable matching networks

ASJC Scopus subject areas

Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/LMWC.2010.2061222

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abstract = "A closed-loop adaptive antenna tuning unit operating from 850 MHz-2 GHz for multi-band, multi-mode radios is presented. Unlike previous approaches, the proposed module utilizes an analog mismatch detector and a closed-loop mixed-signal matching state search circuit, without the need for an A/D converter. The integrated module is designed and fabricated on a 0.18 μm CMOS process. When tested on a band-limited shorted patch antenna, the module can perform a scan of 4096 antenna matching states in 4.1 ms, and tune the antenna to a specified narrow instantaneous bandwidth over the entire frequency range.",

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author = "Hang Song and James Aberle and Bertan Bakkaloglu",

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AB - A closed-loop adaptive antenna tuning unit operating from 850 MHz-2 GHz for multi-band, multi-mode radios is presented. Unlike previous approaches, the proposed module utilizes an analog mismatch detector and a closed-loop mixed-signal matching state search circuit, without the need for an A/D converter. The integrated module is designed and fabricated on a 0.18 μm CMOS process. When tested on a band-limited shorted patch antenna, the module can perform a scan of 4096 antenna matching states in 4.1 ms, and tune the antenna to a specified narrow instantaneous bandwidth over the entire frequency range.

KW - Analog processing

KW - antenna tuning unit

KW - impedance matching

KW - reconfigurable matching networks

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A mixed-signal matching state search based adaptive antenna tuning IC

Abstract

Keywords

ASJC Scopus subject areas

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