Open AccessA High‐Gain Microstrip Patch Array Antenna Using a Superstrate Layer
Author(s) -
Choi Wonkyu,
Cho Yong Heui,
Pyo CheolSik,
Choi JaeIck
Publication year - 2003
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.03.0102.0002
Subject(s) - microstrip antenna , materials science , antenna gain , patch antenna , high gain antenna , standing wave ratio , microstrip , bandwidth (computing) , dielectric , electrical impedance , optoelectronics , antenna (radio) , acoustics , optics , antenna factor , electrical engineering , engineering , telecommunications , physics
A dielectric superstrate layer above a microstrip patch antenna has remarkable effects on its gain and resonant characteristics. This paper experimentally investigates the effect of a superstrate layer for high gain on microstrip patch antennas. We measured the gain of antennas with and without a superstrate and found that the gain of a single patch with a superstrate was enhanced by about 4 dBi over the one without a superstrate at 12 GHz. The impedance bandwidths of a single patch with and without a superstrate for VSWR < 2 were above 11%. The designed 2×8 array antenna using a superstrate had a high gain of over 22.5 dB and a wide impedance bandwidth of over 17%.