ScholarLens Back to search
2005•IEEE MTT-S International Microwave Symposium Digest, 2005.Requires access

W-Band RF MEMS Double and Triple-Stub Impedance Tuners

T. Vähä-Heikkilä, J. Varis, J. Tuovinen, Gabriel M. Rebeiz

Open publisher page 31 citations

Abstract

Reconfigurable integrated impedance tuners have been developed for W-Band on-wafer noise parameter and loadpull measurement applications. The impedance tuners are based on double and triple-stub topologies and employ 11 switched MEMS capacitors producing 2048 (2 11 ) different impedances. Measured ${\left\vert\Gamma_{MAX} \right\vert}$ for the double-stub tuner is 0.92 and 0.82 at 75 and 100 GHz from 110 measurements out of 2048 possible impedances, and 0.92 and 0.83 for the triple-stub tuner. To our knowledge, this represents the first W-band integrated impedance tuner to date.

About this research paper

What this paper is about

Reconfigurable integrated impedance tuners have been developed for W-Band on-wafer noise parameter and loadpull measurement applications. The impedance tuners are based on double and triple-stub topologies and employ 11 switched MEMS capacitors producing 2048 (2 11 ) different impedances. Measured ${\left\vert\Gamma_{MAX} \right\vert}$ for the double-stub tuner is 0.92 and 0.82 at 75 and 100 GHz from 110 measurements out of 2048 possible impedances, and 0.92 and 0.83 for the triple-stub tuner. To our knowledge, this represents the first W-band integrated impedance tuner to date.

Why it matters

OpenAlex reports 31 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Reconfigurable integrated impedance tuners have been developed for W-Band on-wafer noise parameter and loadpull measurement applications. The impedance tuners are based on double and triple-stub topologies and employ 11 switched MEMS capacitors producing 2048 (2 11 ) different impedances. Measured ${\left\vert\Gamma_{MAX} \right\vert}$ for the double-stub tuner is 0.92 and 0.82 at 75 and 100 GHz from 110 measurements out of 2048 possible impedances, and 0.92 and 0.83 for the triple-stub tuner. To our knowledge, this represents the first W-band integrated impedance tuner to date.

Key concepts: Tuner, Stub (electronics), Electrical impedance, Electrical engineering, Impedance matching, Microelectromechanical systems, Capacitor, Materials science

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
W-Band RF MEMS Double and Triple-Stub Impedance Tuners — Research Paper | ScholarLens