Microstrip antennas for dual-frequency operation
Abstract
Single element microstrip antenna for dual-frequency operation have been investigated. By placing shorting pins at appropriate locations in the patch, the ratio of two-band frequencies can be varied from 3 to 1.8. In many applications a smaller ratio is desired, and this can be achieved by introducing slots in the patch. In so doing, the ratio can be reduced to less than 1.3. For this type of antenna, a hybrid multiport theory is developed and theoretical results are found to be in excellent agreement with the measured.
- Publication:
-
IEEE Transactions on Antennas and Propagation
- Pub Date:
- September 1984
- DOI:
- Bibcode:
- 1984ITAP...32..938W
- Keywords:
-
- Antenna Design;
- Antenna Radiation Patterns;
- Electrical Impedance;
- Microstrip Antennas;
- Microwave Antennas;
- Spectral Bands;
- Antenna Feeds;
- Design Analysis;
- Electromagnetic Fields;
- Impedance Measurement;
- Slots;
- Communications and Radar