Dual-Band Shared Aperture Reflector/Reflectarray Antenna Designs, Technologies and Demonstrations for NASA's ACE Radar

被引：0

作者：

Hand, Thomas ^{[1
]}

Cooley, Michael ^{[1
]}

Kempic, Gary ^{[1
]}

Sall, David ^{[1
]}

Stenger, Peter ^{[1
]}

Woodworth, Sarah ^{[1
]}

Park, Richard ^{[1
]}

Racette, Paul E. ^{[2
]}

Heymsfield, Gerald ^{[2
]}

Li, Lihua ^{[2
]}

机构：

[1] Northrop Grumman Elect Syst, Baltimore, MD 21240 USA

[2] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

来源：

2013 IEEE INTERNATIONAL SYMPOSIUM ON PHASED ARRAY SYSTEMS AND TECHNOLOGY | 2013年

关键词：

Reflectarrays; Reflectors; Millimeter Wave; NASA Earth Science; Phased Arrays; AESA; REFLECTARRAY;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

NASA's planned Aerosol, Cloud and Ecosystems (ACE) mission will provide RF measurements for studying the role of aerosols on cloud development. The space-borne radar requires a fixed-beam at W-band and a wide-swath (>100 km) scanning beam at Ka-band. The full scale antenna is comprised of a parabolic cylinder reflector/reflectarray with a fixed W-band feed and a Ka-band Active Electronic Scanning Array (AESA) feed. Cassegrain folded optics is employed to reduce the required mass, volume, mechanical complexity and cost. An innovative reflectarray design provides a focused low-loss pencil beam at W-band, and is RF transparent at Ka-band. The AESA transmit/receive (T/R) modules provide high RF output power and low noise figure. Several planar reflector/reflectarray prototypes were designed and fabricated to validate the novel reflectarray element/surface technology and design methodology. The measured W/Ka band reflector/reflectarray gains and patterns agree very well with predictions thereby confirming the viability of the full scale design.

引用

页码：352 / 358

页数：7

共 21 条

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