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The recent success of the Mars Science Laboratory (MSL) has garnered worldwide interest in further exploration of Mars. In this article, we discuss our latest developments in circularly polarized (CP) patch subarrays to be integrated into a larger 30-dB gain array. This larger array will facilitate an enhanced dual-band direct-to-Earth (DTE) link with NASA's Deep Space Network at the X band. The frequency...
The design of compact, broadband, circularly polarized (CP) patch antennas is a challenging and prevalent issue that has garnered the attention of antenna researchers worldwide. Recently, the CP E-shaped patch antenna was proposed to realize a broad CP bandwidth, but its large size can prevent its use in applications requiring small form factors. This work explores the possibility of a miniaturized...
Establishing reliable and direct communications links from Earth to Mars rovers, also known as Direct-to-Earth (DTE) communications, is a complex and challenging antenna design problem. With the possibility of diminished UHF relay assets for the upcoming Mars 2020 mission, supporting such a technology requires a high performance antenna array system in order to enable substantial return of valuable...
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