An CMOS impedance sensor for MEMS adaptive antenna matching

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Title: An CMOS impedance sensor for MEMS adaptive antenna matching
Authors: Tavakol, Armin
Staszewski, Robert Bogdan
Permanent link: http://hdl.handle.net/10197/7298
Date: 19-May-2015
Abstract: This paper proposes a new calibration mechanism for passive adaptive cellular antenna matching network containing MEMS-based tunable devices. To avoid expensive and bulky couplers and reference circuitry, the tuner contains voltage and current sensors inserted before the antenna matching network. The sensed complex impedance generates 2-bit update controls for the tuning algorithm, which drives the MEMS-based tunable devices. The impedance sensing IC is designed to operate in the frequency range of 1.7–2.7 GHz and the clock frequency is 50 kHz.
Type of material: Conference Publication
Publisher: IEEE
Keywords: Antenna tuner;Matching network;Impedance matching;Sensing element;Transmitter
Language: en
Status of Item: Peer reviewed
Is part of: Proceedings of IEEE Radio Frequency Integrated Circuits (RFIC) Symposium 2015
Conference Details: IEEE Radio Frequency Integrated Circuits (RFIC) Symposium, Phoenix, Arizona, USA, 17 - 19 May 2015
Appears in Collections:Electrical and Electronic Engineering Research Collection

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