Abstract
A novel in-line interferometric acousto-optic architecture for two-dimensional beam scanning of planar phased arrays is demonstrated experimentally for a 330-MHz carrier. The required modulo-27r phase control along the two orthogonal antenna-array directions is achieved by using two independent control frequenciesf andf2 with frequency variations of 0-170 and 0-210 kHz, respectively. A processor output carrier signal-to-noise ratio of 48 dB at + 1-MHz offset is measured in an analyzer bandwidth of 300 kHz, with a carrier tuning range of 90 MHz.
| Original language | English |
|---|---|
| Pages (from-to) | 1936-1942 |
| Number of pages | 7 |
| Journal | Applied Optics |
| Volume | 32 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 10 Apr 1993 |
| Externally published | Yes |
Keywords
- Bragg cell
- High-speed switching
- Planar phased-array antenna
- Two-dimensional beam scanning