A Wideband Dual Circularly Polarized Full-Corporate Waveguide Array Antenna Fed by Triple-Resonant Cavities
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TLDR
In this paper, a dual circularly polarized (CP) array antenna is presented for Ka-band wireless communication, where a triple-resonant cavity is proposed to implement mode conversion and impedance matching in the $2 \times 2$ -element subarray.Abstract:
A dual circularly polarized (CP) waveguide array antenna is presented for Ka-band wireless communication. A novel triple-resonant cavity is proposed to implement mode conversion and impedance matching in the $2 \times 2$ -element subarray. A ridge waveguide polarizer is integrated to form the left-hand circular polarization (LHCP) and the right-hand circular polarization (RHCP). A flyover-shaped full-corporate feeding network is designed to accommodate the dual polarizations and keep the wideband characteristic for a large-scale array. Subarray spacing is used to optimize the port-to-port isolation and decrease the sidelobe level at some definite angles. Computer numerically controlled machining technology is applied to fabricating a $16 \times 16$ -element prototype. Measured results demonstrate a bandwidth of 16% from 27.6 to 32.4 GHz for the dual polarizations, in terms of good reflection coefficient and axial ratio. A maximum gain of 32.8 dBic is achieved at 28.8 GHz. A total efficiency over 60% is obtained throughout the above band for both LHCP and RHCP ports.read more
Citations
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Dual Circular-Polarized SIW-Fed High-Gain Scalable Antenna Array for 60 GHz Applications
Yue Zhao,Kwai-Man Luk +1 more
TL;DR: In this article, a dual circularly polarized high-gain scalable antenna array is proposed for the 60 GHz applications, which consists of cross-slot-coupled cavity-backed square patch antenna elements fed by a novel substrate-integrated waveguide network.
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A Wideband, Unidirectional Circularly Polarized Antenna for Full-Duplex Applications
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TL;DR: In this article, a planar unidirectional circularly polarized (CP) antenna with simultaneous transmit and receive (STAR) capability is presented for full-duplex applications.
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A Q-Band Low-Profile Dual Circularly Polarized Array Antenna Incorporating Linearly Polarized Substrate Integrated Waveguide-Fed Patch Subarrays
TL;DR: An integrated low-profile dual circularly polarized (dual CP) array antenna operating in the Q-band is proposed in this article, which is realized by sequentially rotating subarrays comprised linearly polarized (LP) substrate integrated waveguide (SIW)-fed patches.
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Dual Circularly Polarized Aperture Array Antenna in Gap Waveguide for High-Efficiency Ka-Band Satellite Communications
Miguel Ferrando-Rocher,Jose I. Herranz-Herruzo,Alejandro Valero-Nogueira,Bernardo Bernardo-Clemente +3 more
TL;DR: In this paper, the Spanish Ministry of Economy and Competitiveness (Ministerio de Economia y Competitividad) under Project TEC2016-79700-C2-1-R was supported by the Spanish government.
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A Dual-Polarized Cross-Slot Antenna Array on a Parallel-Plate Waveguide With Compact Structure and High Efficiency
TL;DR: In this paper, a dual-polarized cross-slot antenna array based on the parallel-plate waveguide (PPW) was proposed to achieve dual polarization and high efficiency.
References
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