Open AccessReconfigurable Circularly Polarized Microstrip Antenna on a Slotted Ground
Author(s) -
Yoon WonSang,
Han SangMin,
Pyo Seongmin,
Lee Jaehoon,
Shin InChul,
Kim YoungSik
Publication year - 2010
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.10.0209.0455
Subject(s) - ground plane , patch antenna , microstrip antenna , circular polarization , optics , microstrip , pin diode , physics , reconfigurable antenna , polarization (electrochemistry) , antenna (radio) , electrical engineering , diode , optoelectronics , coaxial antenna , engineering , chemistry
A compact square patch antenna with reconfigurable circular polarization (CP) at 2.4 GHz is proposed. Circular polarization is generated by an arc‐shaped slot on the ground plane. In order to switch the CP orientation, the current flow direction of the patch is reconfigured via the PIN diodes mounted on the slot. As the slot and bias circuit are not placed on the patch side, the proposed antenna radiates a CP wave without alteration in the main beam direction. From the experimental results, the impedance and CP bandwidths of the proposed antenna have been demonstrated for up to 80 MHz and 25 MHz, respectively.