Abstract
The authors address the problem of providing an aperture that is consistent in its operational bandwidth and grating lobe requirements and is configurable as a phased array of transmit/receive (T/R) modules. The design and performance of wideband phased-array apertures and an active line array suited for multifunction system applications are discussed. It is shown that radar performance in multifunction systems with dual-polarized apertures can yield an active VSWR (voltage standing wave ratio) that is, on the average, below 2.0:1.0 over a ±60 degree scan in X-band. The mean active VSWR over the 6.0- to 18.0-GHz band scanning beyond 60 degrees (60 to 70 degrees) is below 3.3:1.0. It has been demonstrated that full polarization diversity can be accomplished and that the T/R circuit can be packaged in densities consistent with 18-GHz performance. It appears that 5 to 7 MMIC (monolithic microwave integrated circuit) chip X-band modules can be realized having 4- to 5-W output, 3-dB noise figure, and 30-dB gain for under $500.
| Original language | English (US) |
|---|---|
| Pages | 125-128 |
| Number of pages | 4 |
| State | Published - 1989 |
| Externally published | Yes |
| Event | Proceedings of the 1989 IEEE National Radar Conference - Dallas, TX, USA Duration: Mar 29 1989 → Mar 30 1989 |
Other
| Other | Proceedings of the 1989 IEEE National Radar Conference |
|---|---|
| City | Dallas, TX, USA |
| Period | 3/29/89 → 3/30/89 |
ASJC Scopus subject areas
- General Engineering