Abstract
This paper presents the design of a broadband RF impedance tuner that is part of a dynamically reconfigurable automatic match control (AMC) circuit that can be used for a wide variety of wireless devices and intelligent RF front ends. The impedance tuner can be used at the input of wireless devices in order to provide a significantly broader bandwidth or to reconfigure the impedance match spectrum. The tuner uses a microstrip loaded-line circuit topology with multiple stubs that each have a varactor diode located at the end. The results show that the tuner can achieve a broadband impedance match for a wide variety of loads that are either purely resistive or that have a large reactance as well.
Original language | English (US) |
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Pages (from-to) | 470-478 |
Number of pages | 9 |
Journal | IEEE Transactions on Antennas and Propagation |
Volume | 54 |
Issue number | 2 |
DOIs | |
State | Published - Feb 2006 |
Keywords
- Automatic match control (AMC)
- Intelligent RF front ends
- Reconfigurable tuner
ASJC Scopus subject areas
- Electrical and Electronic Engineering