✦ LIBER ✦

Spiral antenna with helix loaded for dual circularly polarized bands radiation

✍ Scribed by Can-Hui Chen; E. K. N. Yung; Bin-Jie Hu

Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 427 KB
Volume: 49
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.22596

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

A spiral antenna with a helix loaded is investigated in this paper. Through combining the spiral with a helix together, circular polarization can be achieved in dual bands. Since the helix is loaded in the lower part of the spiral, this technique doesn't increase the antenna's volume but at the same time introduces another CP band. The experimental result shows that the lower band and upper band are 4.0% and 62.07% respectively. The characteristics of impedance, current distribution and radiation pattern will also be presented. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1939–1942, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22596

📜 SIMILAR VOLUMES

Dual-band circularly polarized antenna w

Dual-band circularly polarized antenna with a QUAD-EMC structure

✍ The-Nan Chang; Guo-Yang Ni 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 222 KB

## Abstract In this paper, a method for obtaining a single‐feed dual‐band circularly polarized (CP) antenna with QUAD‐EMC structure is presented. The proposed dual‐band CP design was achieved by four small patches displayed on the upper surface of a first substrate, and fed electromagnetically by a

Compact dual-band circularly polarized a

Compact dual-band circularly polarized antenna for GPS/ETC operation on vehicles

✍ Che-Wei Su; Chih-Ming Su; Kin-Lu Wong 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 93 KB

## Abstract A new integration design of two circularly polarized (CP) antennas for global positioning system (GPS) and electronic toll collection system (ETC) is presented. A probe‐fed corner‐truncated square microstrip antenna, which is a resonant‐type structure, is used for GPS operation at 1575

Circularly polarized circular microstrip

Circularly polarized circular microstrip patch antenna loaded with four shorting posts for nanosatellite applications

✍ Patsa Khotso; Robert Lehmensiek; Robert R. van Zyl 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 199 KB

## Abstract A low profile all‐metal mechanically robust circular microstrip patch antenna at S‐band frequencies is presented.The single coaxial feed circularly polarized antenna was optimized for a 3‐unit CubeSat structure. Good correlation between simulated and measured results was obtained. The m

An inverted-L monopole antenna loaded wi

An inverted-L monopole antenna loaded with a meandered wire for GSM/DCS dual-band mobile phones

✍ Hao-Chun Tung; Chi-Yin Fang; Kin-Lu Wong 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 198 KB 👁 1 views

## Abstract A novel dual‐band monopole antenna, created by loading a meandered wire to an inverted‐L wire monopole, is proposed. The antenna is suitable for applications in GSM/DCS dual‐band mobile phones. Both the inverted‐L wire and the meandered wire operate as quarter‐wavelength structures, and