Electronically reconfigurable and mechanically conformal apertures using low-voltage MEMS and flexible membranes for space-based radar applications

被引：5

作者：

Bernhard, JT ^{[1
]}

Chen, N ^{[1
]}

Clark, R ^{[1
]}

Feng, M ^{[1
]}

Liu, C ^{[1
]}

Mayes, P ^{[1
]}

Michielssen, E ^{[1
]}

Wang, R ^{[1
]}

Chorosinski, LG ^{[1
]}

机构：

[1] Univ Illinois, Dept Elect & Comp Engn, Electromagnet Lab, Urbana, IL 61801 USA

来源：

SMART STRUCTURES AND MATERIALS 2001: SMART ELECTRONICS AND MEMS | 2001年 / 4334卷

关键词：

reconfigurable antenna; broadband; RF MEMS;

D O I：

10.1117/12.436592

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：

The University of Illinois and Northrop Grumman Corporation have teamed to integrate a wide band reconfigurable aperture array with associated wide band T/R functions on a flexible and foldable/rollable substrate for space based radar applications. Advanced MEMS and packaging techniques are used to make the antenna array lightweight, reliable, and reproducible. Soft flexible substrates make the antenna foldable/rollable with the associated electronics below the ground plane of the antenna elements. The individually reconfigurable antenna element uses MEMS switches to select between two broad frequency bands of operation. These MEMS switches have low actuation voltages and stress-free operation, improving the array's reliability. The reconfigurable antenna element is based on a low-profile radiator that provides greatly increased instantaneous bandwidth over microstrip patch antennas currently in place for phased array applications. Voltage-controlled MEMS switches are utilized to switch between stacked layers of elements that operate in the S- and X-bands. In each band, the antenna elements provide at least 25% instantaneous bandwidth. The challenges presented by the flexible substrate and the array design as well as experimental and simulated results for the antenna elements and switches are discussed.

引用

页码：129 / 136

页数：8

共 10 条

[1]

DIAZ RE, 2000, P IEEE URSI S ANT PR, V1, P327

[2]

GILBERT R, 2000, P IEEE URSI S ANT PR, P97

[3]

Gupta KC, 2000, IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM, VOLS 1-4, P326, DOI 10.1109/APS.2000.873828

[4] Design of a widehand microstrip bowtie patch antenna [J].

Loi, KW ;

Uysal, S ;

Leong, MS .

IEE PROCEEDINGS-MICROWAVES ANTENNAS AND PROPAGATION, 1998, 145 (02) :137-140

[5]

Maloney JC, 2000, IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM, VOLS 1-4, P310, DOI 10.1109/APS.2000.873823

[6]

Schaffner JH, 2000, IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM, VOLS 1-4, P321, DOI 10.1109/APS.2000.873826

[7]

SOR J, 2000, P IEEE URSI S ANT PR, V1, P318

[8] Bowtie patch antennas and simple arrays for wireless indoor communications [J].

Uysal, S ;

Leong, MS ;

Ng, CH .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1999, 47 (06) :738-745

[9]

Veihl JC, 2000, IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM, VOLS 1-4, P314, DOI 10.1109/APS.2000.873824

[10]

*ZEL SOFTW INC, IE3D VERS 8 0

← 1 →