✦ LIBER ✦

Microstrip-fed cavity-backed slot antennas

✍ Scribed by Quan Li; Zhongxiang Shen; Peng Thian Teo

Publisher: John Wiley and Sons
Year: 2002
Tongue: English
Weight: 214 KB
Volume: 33
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.10283

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Two types of cavity‐backed slot (CBS) antennas fed by a microstrip line and operating at 5.8 GHz are described in this letter. One is a broadband linearly polarized CBS antenna, which can provide 34% bandwidth for a 10‐dB return loss. The other is a circularly polarized dual T‐shape CBS, which has 4% bandwidth for a 3‐dB axial ratio and a 15% bandwidth for a 10‐dB return loss. The simulated and measured results of both antennas are in good agreement. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 33: 229–233, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10283

📜 SIMILAR VOLUMES

Microstrip-fed slot antennas backed by a

Microstrip-fed slot antennas backed by a very thin cavity

✍ Andrea Vallecchi; Guido Biffi Gentili 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 243 KB

## Abstract Slot antennas with a backing cavity for unidirectional radiation are investigated with the aim of achieving a thin structure capable of reasonably broadband operation. By tuning together the slot length and the cavity cross‐section, a very low‐profile cavity‐backed slot (CBS) is demonst

Coaxial-fed cavity-backed slot antenna

✍ The Nan Chang; Liang Chen Kuo; Ming Lin Chuang 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 132 KB

The effect of dielectric loading in EC-SCPW on forwardcoupler characteristics has been studied. The dielectric loading increases the coupling coefficient and the frequency bandwidth, thus finding application in the propagation of narrow pulses. The size of the device can also be reduced considerably

Design of CPW-fed cavity-backed slot ant

Design of CPW-fed cavity-backed slot antennas operating at 30 GHz

✍ Jian Guo; Zhengbin Xu; Cheng Qian; Wenbin Dou 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 207 KB

## Abstract This article describes a cavity‐backed slot antenna fed by a coplanar waveguide (CPW). The designed antenna operates at 30 GHz and uses an inverted configuration with the CPW feed line on the top of the substrate and the slot facing toward the metallic cavity. Both simulated and measure

A double-folded, capacitive-fed, cavity-

A double-folded, capacitive-fed, cavity-backed microstrip antenna

✍ B. L. Ooi 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 111 KB

## Abstract A novel, folded, capacitive‐fed microstrip antenna with a length of λ/3 and placed over a cavity backing is proposed. Compared to the small rectangular patch antenna of Luk, our proposed antenna has a large impedance bandwidth of 20.1%. The cross‐polarization level is ∼−17 dB. © 2001 Jo

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

Mutual coupling of hemispherical cavity-

Mutual coupling of hemispherical cavity-backed slot antennas

✍ K. Y. Chow; K. W. Leung 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 117 KB

The mutual coupling of hemispherical ca¨ity-backed slot ( ) antennas is in¨estigated theoretically. The method of moments MoM is used to find the magnetic currents in the slots rigorously. The currents are then used to find the mutual admittance using the reaction theorem. The results are compared w