Investigation into a size-reconfigurable ground slot for multiband folded coplanar inverted-F antenna

Razali, Ahmad Rashidy and Bialkowski, Marek E. (2011). Investigation into a size-reconfigurable ground slot for multiband folded coplanar inverted-F antenna. In: 2011 Asia-Pacific Microwave Conference Proceedings (APMC 2011). APMC 2011: The 25th Asia-Pacific Microwave Conference, Melbourne, VIC, Australia, (1310-1313). 5-8 December, 2011.

Author Razali, Ahmad Rashidy
Bialkowski, Marek E.
Title of paper Investigation into a size-reconfigurable ground slot for multiband folded coplanar inverted-F antenna
Conference name APMC 2011: The 25th Asia-Pacific Microwave Conference
Conference location Melbourne, VIC, Australia
Conference dates 5-8 December, 2011
Proceedings title 2011 Asia-Pacific Microwave Conference Proceedings (APMC 2011)
Journal name Proceedings of the Asia Pacific Microwave Conference
Place of Publication Piscataway, NJ, USA
Publisher Institute of Electrical and Electronics Engineers (IEEE)
Publication Year 2011
Sub-type Fully published paper
Open Access Status
ISBN 9780858259744
9781457720345
Start page 1310
End page 1313
Total pages 4
Language eng
Formatted Abstract/Summary
This paper presents an investigation into a coplanar inverted-F antenna with a ground slot whose electrical size is varied by turning ON and OFF PIN diode switches. Initially, a quarter wavelength coplanar inverted-F radiator is designed to operate at 900MHz. To minimize its size, the radiator is folded to occupy an area of approximately 10×40mm 2. Next, a ground slot is introduced to excite another resonance at 1850MHz without affecting the 900MHz operation. An investigation is then carried out to tune the size of the slot using three pairs of PIN diode switches with simple biasing circuits. The varying slot size generates new resonances around 1850MHz. The proposed reconfigurable antenna is fabricated and experimentally tested. A good agreement is achieved between the simulated and measured return loss of the antenna showing the experimental impedance bandwidth covering GSM900, PCS1900 and UMTS2100 services. In these frequency bands, the antenna offers nearly omni-directional radiation patterns with measured peak gain between 1.4dBi and 3.5dBi.
Subjects 2208 Electrical and Electronic Engineering
Keyword Coplanar inverted-F Antenna
Multiband antenna
P-I-N diode
Reconfigurable antenna
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

 
Versions
Version Filter Type
Citation counts: Scopus Citation Count Cited 0 times in Scopus Article
Google Scholar Search Google Scholar
Created: Thu, 28 Nov 2013, 04:31:56 EST by System User on behalf of School of Information Technol and Elec Engineering