Wideband apertures for active planar multifunction phased arrays

Mark J. Povinelli, C. Edward Grove

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations


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 languageEnglish (US)
Number of pages4
StatePublished - 1989
Externally publishedYes
EventProceedings of the 1989 IEEE National Radar Conference - Dallas, TX, USA
Duration: Mar 29 1989Mar 30 1989


OtherProceedings of the 1989 IEEE National Radar Conference
CityDallas, TX, USA

ASJC Scopus subject areas

  • General Engineering


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