Abstract
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.
Original language | English |
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Pages (from-to) | 468-471 |
Number of pages | 4 |
Journal | ETRI Journal |
Volume | 32 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2010 Jun |
Keywords
- Circular polarization
- Microstrip patch antenna
- PIN diodes
- Polarization diversity
- Reconfigurable polarization
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Computer Science(all)
- Electrical and Electronic Engineering