Abstract
A new phased-array antenna system concept for narrow-band frequency beam steering is introduced. The phase shift between neighboring antennas in the array is controlled by changing the frequency of the signal traveling along fixed delay lines in a series feed network. Diode mixers are added before each antenna to convert the frequency of the control signal to a constant radiating frequency. A complete transmit system, using microstrip patch antennas, was built on a 4 × 6 in2 printed circuit board for an X-band demonstration. As the control frequency was swept from 15.1 to 18.4 GHz, the beam was steered from -52 to +46 degrees with the peak power density variation of 5 dB, mainly due to nonuniform mixer conversion loss at different control frequencies.
| Original language | English |
|---|---|
| Pages (from-to) | 535-537 |
| Number of pages | 3 |
| Journal | IEEE Microwave and Guided Wave Letters |
| Volume | 9 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 1999 Dec |
| Externally published | Yes |
Keywords
- Beam steering
- heterodyne-scan
- phased array antenna
ASJC Scopus subject areas
- General Engineering
- General Physics and Astronomy
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