Design and applications of a 300-800 MHz tunable matching network
Journal article, 2013

In this paper, the optimized design, characterization and applications of a broadband 300-800 MHz ($\sim$ 91% fractional bandwidth) digitally-controlled tunable matching network is presented. The design employs PIN diodes as switching components and a repetitive structure of basic cells using lumped reactive elements. After an intensive and complex optimization process, a Smith chart coverage (return losses better than 10 dB and losses lower than 2 dB) above 60% is obtained in all the bandwidth reaching 75% in the middle of the band (400-700 MHz). The potential of the manufactured tunable matching network for antenna mismatch compensation, antenna bandwidth extension and power amplifier efficiency improvement in back-off is showed. © 2011 IEEE.

tunable matching network

Antenna tuning

load mismatch

impedance matching


Cesar Sanchez Perez

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

J. De Mingo

University of Zaragoza

P.L. Carro

University of Zaragoza

P. García-Dúcar

University of Zaragoza

IEEE Journal on Emerging and Selected Topics in Circuits and Systems

2156-3357 (ISSN) 21563365 (eISSN)

Vol. 3 4 531-540 6606898

Areas of Advance

Nanoscience and Nanotechnology

Subject Categories


Other Electrical Engineering, Electronic Engineering, Information Engineering



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