Analysis of log-periodic vibrator antennas
Abstract
The theory of periodic structures is used to study the radiation mechanism of log-periodic vibrator antennas (LPVAs) and phased arrays based on them. It is shown that the phase shift between currents on adjacent vibrators in the radiating region is close to 1.5pi. The stability of the LPVA characteristics with respect to mutual couplings when the antenna is used as a phased-array element is established. Recommendations on the improvement of the stability are presented.
- Publication:
-
Radiotekhnika i Elektronika
- Pub Date:
- November 1983
- Bibcode:
- 1983RaEl...28.2108I
- Keywords:
-
- Antenna Arrays;
- Log Periodic Antennas;
- Phased Arrays;
- Backward Waves;
- Phase Shift;
- Quadrupole Networks;
- Communications and Radar