Open AccessDice‐Five Polarization‐Agile Corner‐Fed Patch Array Antenna
Author(s) -
Vallecchi Andrea
Publication year - 2005
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.05.0104.0079
Subject(s) - microstrip antenna , polarization (electrochemistry) , planar , microstrip , engineering , electronic engineering , agile software development , patch antenna , circular polarization , acoustics , antenna (radio) , electrical engineering , optics , physics , topology (electrical circuits) , computer science , chemistry , computer graphics (images) , software engineering
A novel planar polarization‐agile microstrip subarray is proposed and its performance assessed by a thorough numerical investigation. The subarray consists of five square patches with a central element, directly coupled to a pair of microstrip feed lines by a cross‐shaped aperture, which spreads the power outwards to the other patches through a network of suitable connections. By properly exciting the antenna at its input ports, any kind of polarization of the radiated field can be accomplished with fairly low cross‐polarization levels. Moreover, since only two feed lines are required to drive the whole subarray, polarization agility is simply and attractively achieved by a single phase‐shift circuit. The design concept is described and the results of the analyses and simulations performed by two completely independent full‐wave approaches are presented and discussed.