By Topic

Wideband Frequency-Reconfigurable Spirograph Planar Monopole Antenna (SPMA) Operating in the UHF Band

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Rayno, J.T. ; Dept. of Electr. Eng., San Diego State Univ., San Diego, CA, USA ; Sharma, S.K.

A frequency-reconfigurable spirograph planar monopole antenna (SPMA) operating in the ultrahigh frequency (UHF) band using RF p-i-n diodes is presented, including experimental verification. The radiating element is compact (0.53λ at 3.1 GHz) such that it can be used as an array element. It has three measured frequency bands with VSWR <;2: case 1, 2.17-3.36 GHz (43.0% impedance bandwidth); case 2, 1.21-2.50 GHz (69.5%); and case 3, 1.07-2.92 GHz (92.7%). Cases 1 and 2 provide contiguous coverage, and case 3 covers almost the entire range of cases 1 and 2. Thus, this antenna provides continuous coverage for 1.07-3.36 GHz (103.4%). This antenna has acceptable omnidirectional radiation patterns with relatively low cross polarization.

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:11 )