Wideband Patch Antenna
- IP Title
- Wideband Patch Antenna
- Summary
-
The rapid growth of telecommunication gives rise to an ever-increasing demand for patch antennas with wide impedance bandwidth. The patch antenna invented by CityU is equipped with a pair of folded feed plates that serve as a wideband impedance matching device. It can achieve an impedance bandwidth of up to 74 percent at a standing wave ratio of less than two. Differential signals are fed by the folded feed plates to the antenna plate; such an arrangement leads to the suppression of unwanted radiation from the feeding plates, and hence low cross-polarization levels within the operating band can be achieved. The patch antenna can be implemented in a circularly-polarized patch antenna by cutting two corners off the antenna plate to make a truncated path. The stacked antenna is widely used in GPS applications.
- Technology Application
-
•For use in a broad range of wireless communication devices
- Application Date
- 10/12/2007
- ID No.
- 11/953,210
- Country/Region
- Hong Kong
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