A 6/4 and 30/20 (or 14/12) GHz dual foci offset paraboloidal reflector antenna

Lang, K.; Eick, M.; Nakatani, D.

doi:10.1109/aps.1975.1147478

Cited by 3 publications

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A dichroic frequency-selective subreflector aligns the primary patterns of the two bands. For the low frequency band, the antenna works as a primary focus fed parabolic reflector; for the high-frequency band, it works as a Cassegrain antenna [3]. In order to generate multiple spots, the previous system requires four common reflectors.…”

Section: Introductionmentioning

confidence: 99%

Multifeed EBG Dual-Band Antenna for Spatial Mission

Kanso

Chantalat

Naeem

et al. 2011

International Journal of Antennas and Propagation

View full text Add to dashboard Cite

We present the design of a multibeam reflector antenna fed by a multifeed dual-band electromagnetic band gap (EBG) antenna to achieve a high-gain multispot coverage for space applications. First, we design a dual-band EBG antenna in monofeed configuration. This antenna is composed of double-layer frequency selective surfaces (FSSs) arranged in the longitudinal direction and a square horn as a feed. Then, the same antenna in multifeed configuration is studied, and the results are compared to those obtained in monofeed configuration in order to emphasize the problem of coupling, generally encountered in multifeed configuration. Consequently, filters are used in order to reduce the parasitic interferences and obtain good radiation characteristics. As shown in this paper, the same EBG phase center is obtained in both frequency bands. Finally, we have studied the whole system composed of the offset reflector and the multifeed EBG dual-band antenna. An edge of coverage (EOC) gain higher than 42 dBi and sidelobes levels lower than −18 dBi are obtained over all spots.

show abstract

Section: Introductionmentioning

confidence: 99%