𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A reconfigurable cavity backed antenna for circular polarization diversity

✍ Scribed by Guo Qing Luo; Ling Ling Sun

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
241 KB
Volume
51
Category
Article
ISSN
0895-2477

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

This letter describes the concept and realization of a low‐profile substrate integrated waveguide (SIW) cavity backed antenna with circular polarization diversity. Four shorting posts are placed at the extended center lines of the crossed‐slot. Diodes are utilized to switch the shorting posts on and off. A simple bias circuit is presented to electronically control biased states of the diodes. By switching the biased states the proposed antenna can generate either a right‐hand circularly polarized (RHCP) or a left‐hand circularly polarized (LHCP) radiation. Samples operating at 10 GHz have been fabricated. Experiments have been carried out to validate the proposed method. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1491–1493, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24393

📜 SIMILAR VOLUMES

A novel reconfigurable circular polariza
A novel reconfigurable circular polarization patch antenna
✍ Jun Ouyang; Feng Yang; Shiwen Yang 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 235 KB

## Abstract A novel design of a microstrip patch antenna with switchable branches is proposed to achieve circular polarization diversity. Two branches are incorporated into the patch and two switches are utilized to switch the branches on and off. By turning the switches on or off, this antenna can

Reconfigurable patch antenna with switch
Reconfigurable patch antenna with switchable L-shaped slots for circular polarization diversity
✍ S. Raghavan; T. Shanmuganantham; M. S. Kishore Kumar 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 202 KB

## Abstract A novel design of a microstrip patch antenna incorporated by two orthogonal L‐shaped switchable slots is proposed to achieve circular polarization. Two pin diodes are inserted into these L‐shaped slots and by making these two pin diodes ON and OFF the antenna can radiate with either rig

Diversity gain measurements of a reconfi
Diversity gain measurements of a reconfigurable antenna with switchable polarization
✍ B. Poussot; J. M. Laheurte; L. Cirio; O. Picon 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 381 KB

## Abstract This article presents an experimental investigation on the diversity performance of a reconfigurable antenna integrating a SPDT for polarization switching. The antenna is characterized in terms of its envelope correlation factor, mean effective gain, and diversity gain (DG) in a multipa

A microstrip-fed cavity-backed circularl
A microstrip-fed cavity-backed circularly polarized horn antenna
✍ Nak-Seon Seong; Seong-Ook Park 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 147 KB

## Abstract A 20 GHz 2 × 2 subarray radiator of microstrip‐fed cavity‐backed circularly polarized horn is presented. Since horn antennas incorporating waveguide types of circular polarizers have big size of radiator height, microstrip feeding and polarization is proposed and cavity‐backed introduce

Miniaturization and bandwidth enhancemen
Miniaturization and bandwidth enhancement of a cavity backed circular microstrip patch antenna
✍ Nemai Chandra Karmakar 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 329 KB

The resonant frequency of a circular patch antenna with and without circular cavity is measured. The patch miniaturization in the presence of the cavity is proved. Different methods of reducing resonant frequencies and broadening bandwidth without significantly reducing antenna gain are presented. C