An RHCP/LHCP switchable slotline-fed slot-ring antenna

✍ Scribed by Min-Hua Ho; Ming-Ting Wu; Chung-I G. Hsu; Jia-Yi Sze

• Book ID: 102519164
• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 147 KB
• Volume: 46
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/mop.20892

✦ Synopsis

Abstract

In this paper, two irises are orthogonally connected to a slot‐ring antenna via short‐length slits with each of the slits loaded by a pin diode. This antenna can be switched back and forth between right‐hand and left‐hand circular polarization by turning on/off the pin diodes. The slot ring is excited by a slotline. The conformability of the slotline with an SMA is accomplished by inserting a CPW‐to‐slotline transition between them. An experimental antenna is built on a low‐cost FR4 substrate in order to validate the design. The antenna's uniplanar architecture and its polarization‐diversity property will be very useful in wireless‐communication systems. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 30–33, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20892