Investigation of sidelobe level performance in phased arrays with pattern reconfigurable elements

Roach, T.; Bernhard, Jennifer T.

doi:10.1109/aps.2007.4395441

Cited by 12 publications

(6 citation statements)

References 4 publications

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“…Given the number of available combinations, this work focuses narrowly on configuring the antenna elements with broadside or tilted radiation patterns (e.g., those represented by the RMPA), uniform and classical amplitude tapers, and variable progressive phasing between elements. The following two subsections present the calculated results for several array configurations to provide insight into design tradeoffs, with the first using uniform amplitude excitations across the array (after Roach & Bernhard [2007]), while the second implements amplitude tapering.…”

Section: Array Behavior With Reconfigurable Elementsmentioning

confidence: 99%

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Exploration of Amplitude Tapering in Linear Phased Arrays with Pattern-Reconfigurable Elements

Roach

Bernhard

2009

Electromagnetics

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In classical periodic phased arrays, designers use the amplitude and phase of identical array elements to achieve desired characteristics such as sidelobe level, main beamwidth, scan angle, etc. A phased array composed of individual patternreconfigurable antenna elements possesses a third degree of freedom that may enhance or expand array performance. This work explores the functional benefits of utilizing radiation reconfigurable antennas with beam tilts in phased arrays, focusing on the effects of reconfigurability on sidelobe level, gain, and excitation dynamic range of amplitude tapered linear phased arrays. Simulated patterns from a broadside-to-tilted radiation reconfigurable antenna were used to calculate the overall array pattern via superposition for a linear, equally spaced array. Results indicate the concept has potential for lowering sidelobe levels, increasing system efficiency, and expanding array capability compared to that of a traditional planar array with fixed broadside elements.

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Section: Array Behavior With Reconfigurable Elementsmentioning

confidence: 99%

“…To investigate the changes in sidelobe level attained with the reconfigurable array, two cases are considered (Roach & Bernhard, 2007). The first two rows of Table 1 summarize these cases.…”

Section: Sidelobe Levels With An Off-broadside Main Beammentioning

confidence: 99%

Exploration of Amplitude Tapering in Linear Phased Arrays with Pattern-Reconfigurable Elements

Roach

Bernhard

2009

Electromagnetics

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“…One solution to improve the gain of the unit cell at large scanning angles is to use radiation pattern reconfigurable antennas (RPRAs). The control on the individual radiation pattern is also highly useful to improve the side lobe levels of the array system [1]. There are many articles addressing RPRA designs, [2][3][4][5][6] where the pattern reconfiguration function is controlled using PIN diodes or varactor diodes.…”

Section: Introductionmentioning

confidence: 99%

“…The radar cross section (RCS) of an object is of concern where target detection by electromagnetic means is important [1]. In some situations, a target needs to have at one instance of time a low RCS making it difficult to detect, while at another time a larger RCS making the object visible.…”

Section: Introductionmentioning

confidence: 99%

Pattern reconfiguration of microstrip antenna using flip‐chip mounted packaged MEMS

Raj¹,

Poussot²,

Laheurte³

et al. 2010

Micro & Optical Tech Letters

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This work describes the design of a radiation pattern reconfigurable microstrip antenna electrically controlled by packaged Radio frequency micro-electro-mechanical system (RF MEMS). The antenna operates at 12.24 GHz with good return loss characteristics and a $7.5 dBi gain at AE30 scan angles from broadside direction in the H-plane. The integration of packaged RF MEMS and associated bias networks is also explained.

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“…Some effective techniques have been proposed to redistribute grating lobes energy [5,6]. Literature [7] tries to use pattern reconfigurable antenna to suppress the grating lobes of phased array.…”

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confidence: 99%

Appling Weighted Thinned Linear Array and Pattern Reconfigurable Elements to Extend Pattern Scanning Range of Millimeter Wave Microstrip Phased Array

Bai

Xiao

Wang

et al. 2009

J Infrared Milli Terahz Waves

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A weighted thinned linear array with pattern reconfigurable antenna elements is proposed to overcome the disadvantages of traditional millimeter wave phased arrays, such as, narrow scanning range, high grating lobes. The developed array can scan its main beam from 8=-76°to 76°in H-plane and has 3 dB beam coverage from 8=-88°to 88°with low grating lobes by shifting two operating states of the elements and adjusting the feed phases.

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Investigation of sidelobe level performance in phased arrays with pattern reconfigurable elements

Cited by 12 publications

References 4 publications

Exploration of Amplitude Tapering in Linear Phased Arrays with Pattern-Reconfigurable Elements

Exploration of Amplitude Tapering in Linear Phased Arrays with Pattern-Reconfigurable Elements

Pattern reconfiguration of microstrip antenna using flip‐chip mounted packaged MEMS

Appling Weighted Thinned Linear Array and Pattern Reconfigurable Elements to Extend Pattern Scanning Range of Millimeter Wave Microstrip Phased Array

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