A Compact Semi-Lumped Tunable Complex Impedance Transformer - Archive ouverte HAL Access content directly
Journal Articles International Journal of Microwave and Wireless Technologies Year : 2009

A Compact Semi-Lumped Tunable Complex Impedance Transformer

(1) , (1) , (1) , (2) , (1)
1
2

Abstract

This article describes the design and performance of a compact tunable impedance transformer. The structure is based on a transmission line loaded by varactor diodes. Using only two pairs of diodes, the circuit is very small with a total length of only λ/10. Both the frequency range and the load impedance can be tuned by varying the varactor bias voltages. Our design provides a tunable operating frequency range of ± 40% and an impedance match ranging from 20 Ω to 90 Ω at 0.8 GHz and from 30 Ω to 170 Ω at 1.5 GHz. In addition, a new approach that considers losses for the simulation and measurement of this impedance transformer was investigated. The measured performance of a 1 GHz prototype design confirmed the validity of this new approach.
Fichier principal
Vignette du fichier
2009_International Journal of Microwave and Wireless Technologies.pdf (3.87 Mo) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-00599015 , version 1 (22-06-2018)

Identifiers

  • HAL Id : hal-00599015 , version 1

Cite

A.L. Perrier, J.M. Duchamp, O. Exshaw, Robert Harrison, P. Ferrari. A Compact Semi-Lumped Tunable Complex Impedance Transformer. International Journal of Microwave and Wireless Technologies, 2009, 1 (5), pp.403-413. ⟨hal-00599015⟩
123 View
202 Download

Share

Gmail Facebook Twitter LinkedIn More