Results 171 to 180 of about 1,257 (220)
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Preliminary results on Conformal Transmitarray Antennas
2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2018In this communication some results of a preliminary study on Conformal Transmitarray Antennas (CTAs) are presented. In particular, the peculiarities of such a configuration are reported, and the radiation features of a small-medium size structure are shown.
Beccaria, Michele +2 more
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Design of circularly polarized folded transmitarray antenna
International Conference on Optoelectronic and Microelectronic Technology and Application, 2020In this paper, the method of circularly polarized folded transmitarray antenna (CPFTA) is first proposed and studied based on transmitarray antenna (TA). The special element of TA is proposed to reflect x-polarized waves as a ground, transmit y-polarized waves and convert the y-polarized waves to circular polarized wave with arbitrary phase shift at ...
Jin Yang, Shangtong Chen, Yuhua Chen
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High-Efficient Wideband Slot Transmitarray Antenna
IEEE Transactions on Antennas and Propagation, 2015A novel high-efficient, wideband, and single-linear-polarized slot-based transmitarray antenna is presented. The unit cell comprises three thin metallic layers with air gap in between, without use of any dielectric substrate. Each metallic layer has a square wide slot within which there are a number of parallel stubs.
B. Rahmati, H. R. Hassani
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Design of Wideband Dual Linearly Polarized Transmitarray Antennas
IEEE Transactions on Antennas and Propagation, 2016Dual linearly polarized transmitarray antennas with wideband performance are investigated in X-band. Their designs are based on unit-cells with bandpass response. Their structures consist of three conducting layers printed on two identical dielectric substrates glued with a bonding film.
Pham, K. +6 more
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Antenna-Filter-Antenna Based Transmitarray with Beam-steering Capability
2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS), 2019An original approach of an antenna-filter-antenna based transmitarray which consists of the unit cells with 1-bit phase quantization is considered. Each unit cell represents a passive receiver-transmitter structure with integrated phase-shifter, which can take either of two coding states corresponding 180° phase difference between the states.
Munina, Irina +2 more
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Transmitarray Antenna for Generating Multiple OAM Modes
2020 IEEE Asia-Pacific Microwave Conference (APMC), 2020This paper introduces a novel transmitarray antenna for generating two coaxially propagating orbital angular momentum (OAM) modes with same polarization at 60 GHz. Each OAM mode corresponds to an independent communication channel. The design ed transmitarray can compensate for the spatial phase delays from the two feed sources at different positions ...
Geng-Bo Wu +3 more
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OAM-Generating Transmitarray Antenna With Circular Phased Array Antenna Feed
IEEE Transactions on Antennas and Propagation, 2020A transmitarray antenna (TAA) with a small-scale circular phased array antenna (PAA) feed is proposed in this article to generate orbital angular momentum (OAM)-carrying radio beams. After analyzing the operating mechanisms of the OAM-generating PAA-fed TAA, its numerical model is further developed to determine the TAA element arrangement and the PAA ...
Peng-Yu Feng, Shi-Wei Qu, Shiwen Yang
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Terahertz substrateless transmitarray antenna design and microfabrication
Microwave and Optical Technology Letters, 2016ABSTRACTA terahertz substrateless transmitarray antenna using four layers of slot type elements is presented. Because the element contains no dielectric substrate, reflection loss on the surface of dielectric and transmission loss in the dielectric could be effectively avoided at terahertz band.
Guang Liu +3 more
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Programmable Transmitarray Antennas
International ...Clemente, Antonio, Sauleau, Ronan
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Double-Layer Wideband Transmitarray Antenna
2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT), 2022Han Dong, Yong-Ling Ban, Ya-Peng Wang
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