scholarly journals A GENERAL METHOD FOR DESIGNING A RADOME TO ENHANCE THE SCANNING ANGLE OF A PHASED ARRAY ANTENNA

2014 ◽  
Vol 145 ◽  
pp. 203-212 ◽  
Author(s):  
Fei Sun ◽  
Shuai Zhang ◽  
Sailing He
Keyword(s):  
Phased Array ◽  
Array Antenna ◽  
Phased Array Antenna ◽  
Scanning Angle ◽  
General Method

scholarly journals Transformation-Optics-Based Design of a Metamaterial Radome for Extending the Scanning Angle of a Phased-Array Antenna

2017 ◽  
Vol 2 ◽  
pp. 159-167 ◽  
Author(s):  
Massimo Moccia ◽  
Giuseppe Castaldi ◽  
Giuliana D'Alterio ◽  
Maurizio Feo ◽  
Roberto Vitiello ◽  
...  
Keyword(s):  
Phased Array ◽  
Array Antenna ◽  
Transformation Optics ◽  
Phased Array Antenna ◽  
Scanning Angle

scholarly journals MM-Wave Phased Array Quasi-Yagi Antenna for the Upcoming 5G Cellular Communications

2019 ◽  
Vol 9 (5) ◽  
pp. 978 ◽  
Author(s):  
Naser Ojaroudi Parchin ◽  
Mohammad Alibakhshikenari ◽  
Haleh Jahanbakhsh Basherlou ◽  
Raed A. Abd-Alhameed ◽  
Jonathan Rodriguez ◽  
...  
Keyword(s):  
Phased Array ◽  
Coaxial Cable ◽  
Array Antenna ◽  
Handheld Devices ◽  
Impedance Bandwidth ◽  
Mobile Platforms ◽  
Phased Array Antenna ◽  
Scanning Angle ◽  
Planar Arrays ◽  
Yagi Antenna

The focus of this manuscript was to propose a new phased array antenna design for the fifth generation (5G) mobile platforms. Eight elements of compact Quasi-Yagi antennas were placed on the top portion of smartphone printed circuits board (PCB) to form a beam-steerable phased array design. The −10 dB impedance-bandwidth of proposed 5G smartphone antenna spans from 25 GHz to 27 GHz providing 2 GHz bandwidth with less than −16 dB mutual coupling function. A coax-to-microstripline with a truncated crown of vias around the coaxial cable was used as a feeding mechanism for each radiation element. An Arlon Ad 350 substance with properties of ε = 3.5, δ = 0.003, and h = 0.8 mm was chosen as the antenna substrate. The proposed phased array antenna provides wide-angle scanning of 0°~75° with more than 10 dB realized gain levels. For the scanning angle of 0°~60°, the antenna array provides more than 90% (−0.5 dB) radiation and total efficiencies. In addition, the specific absorption rate (SAR) function and radiation performance of the design in the presence of the user-hand/user-hand have been studied. The results validate the feasibility of the proposed design for use in the 5G handheld devices. Furthermore, using the presented Quasi-Yagi elements, the radiation properties of 2 × 2, 4 × 4, and 8 × 8 planar arrays were studied and more than 8.3, 13.5, and 19.3 dBi directivities have been achieved for the designed planar arrays. The results show that the designed arrays (linear & planar) satisfy the general requirements for use in 5G platforms.

Extending the Scanning Angle of a Phased‐Array Antenna Using a Thin Radome of Curved Metasurface

2020 ◽  
Vol 14 (3) ◽  
pp. 1900624 ◽  
Author(s):  
Yichao Liu ◽  
Jichao Fu ◽  
Hongguang Dong ◽  
Chengsheng Gong ◽  
Fei Sun ◽  
...  
Keyword(s):  
Phased Array ◽  
Array Antenna ◽  
Phased Array Antenna ◽  
Scanning Angle

scholarly journals EVALUATION OF THE FEASIBILITY OF AN ACTIVE PHASED ARRAY ANTENNA IN THE TERMINAL OF THE EXPRESS-RV SATELLITE COMMUNICATION SYSTEM

T-Comm ◽  
2021 ◽  
Vol 15 (8) ◽  
pp. 13-21
Author(s):  
Victor S. Aleshin ◽  
Keyword(s):  
Communication System ◽  
Satellite Communication ◽  
Phased Array ◽  
Array Antenna ◽  
Phased Array Antenna ◽  
Scanning Angle ◽  
Phased Array Antennas ◽  
Array Antennas ◽  
Mobile Satellite ◽  
Antenna Systems

The basic principles of building a promising domestic regional satellite communication system “Express-RV”, based on the highly elliptical orbit “Molniya” and intended for broadband access of civil sector subscribers to various public communication networks, in particular to the Internet, are considered. The main technical requirements for the antenna systems of mobile mobile satellite communication terminals of the Express-RV system are formulated. The necessity of using active phased array antennas for a number of types of such terminals is justified. A brief overview of the principles of implementation and examples of the design of microstrip active phased array antennas, including their elementary emitters and individual modules, are given. The problem of the occurrence of the blinding effect inherent in flat microstrip gratings made on dielectric substrates is noted; measures to compen-sate for this effect are considered. The possibility of expanding the maximum scanning angle of a narrowly directed beam of an active phased array antenna by using a magnetically controlled scattering dielectric lens, as well as creating segment-dome structures of antenna systems in relation to mobile terminals of mobile satellite communications of the “Express-RV” system, is shown. Simple analytical relations are derived that allow us to estimate the number of elementary emitters required for the implementation of a receiving-transmitting active phased array antenna with specified technical characteristics: gain and maximum scanning angle; the corresponding dependencies are given. The cost of creating an antenna system based on an active phased array is estimated.

Phase Control and Calibration Characteristics of Optically Controlled Phased Array Antenna Feed Using Multiple SMFs

2011 ◽  
Vol E94-C (10) ◽  
pp. 1634-1640 ◽  
Author(s):  
Daiki TAKEUCHI ◽  
Wataru CHUJO ◽  
Shin-ichi YAMAMOTO ◽  
Yahei KOYAMADA
Keyword(s):  
Phased Array ◽  
Phase Control ◽  
Array Antenna ◽  
Antenna Feed ◽  
Phased Array Antenna
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