scholarly journals Half-Height-Pin Gap Waveguide Technology and Its Applications in High Gain Planar Array Antennas at Millimeter Wave Frequency

2018 ◽  
Vol E101.B (2) ◽  
pp. 285-292
Author(s):  
Jian YANG ◽  
Fangfang FAN ◽  
Parastoo TAGHIKHANI ◽  
Abbas VOSOOGH
Keyword(s):  
Millimeter Wave ◽  
High Gain ◽  
Wave Frequency ◽  
Array Antennas ◽  
Half Height ◽  
Planar Array

scholarly journals A Tutorial on Optical Feeding of Millimeter-Wave Phased Array Antennas for Communication Applications

2015 ◽  
Vol 2015 ◽  
pp. 1-22 ◽  
Author(s):  
Ivan Aldaya ◽  
Gabriel Campuzano ◽  
Gerardo Castañón ◽  
Alejandro Aragón-Zavala
Keyword(s):  
Millimeter Wave ◽  
High Speed ◽  
Phased Array ◽  
Path Loss ◽  
High Gain ◽  
Interference Avoidance ◽  
Amplitude Control ◽  
Phased Array Antennas ◽  
Array Antennas ◽  
The Impact

Given the interference avoidance capacity, high gain, and dynamical reconfigurability, phased array antennas (PAAs) have emerged as a key enabling technology for future broadband mobile applications. This is especially important at millimeter-wave (mm-wave) frequencies, where the high power consumption and significant path loss impose serious range constraints. However, at mm-wave frequencies the phase and amplitude control of the feeding currents of the PAA elements is not a trivial issue because electrical beamforming requires bulky devices and exhibits relatively narrow bandwidth. In order to overcome these limitations, different optical beamforming architectures have been presented. In this paper we review the basic principles of phased arrays and identify the main challenges, that is, integration of high-speed photodetectors with antenna elements and the efficient optical control of both amplitude and phase of the feeding current. After presenting the most important solutions found in the literature, we analyze the impact of the different noise sources on the PAA performance, giving some guidelines for the design of optically fed PAAs.

scholarly journals Broadband Proximity Coupled Microstrip Planar Antenna Array For 5g Cellular Applications

2020 ◽  
pp. 1-26
Keyword(s):  
Millimeter Wave ◽  
Low Cost ◽  
High Gain ◽  
Planar Antenna ◽  
Wave Antenna ◽  
Compact Size ◽  
Planar Array ◽  
Millimeter Wave Antenna ◽  
Good Agreement ◽  
Planar Antenna Array

A novel low-cost, high-gain millimeter-wave antenna has been presented. The antenna is a 6 × 5 proximitycoupled planar array suitable for 5G cellular applications. Good agreement between simulated and measured results achievedshows thattheproposedantenna structure is efficientinachievingbroadbandcharacteristicsand lowsidelobe levels with a compact size. The antenna has a gain of 21 dBi over a bandwidth of 27.5-28.5 GHz. It also exhibits an impedance bandwidthof 9.8%from26.04to28.78GHz.

A Low-Noise, High-Gain Quasi-Millimeter-Wave Receiver MMIC with a Very High Degree of Integration Using 3D-MMIC Technology

2011 ◽  
Vol E94-C (10) ◽  
pp. 1548-1556 ◽  
Author(s):  
Takana KAHO ◽  
Yo YAMAGUCHI ◽  
Kazuhiro UEHARA ◽  
Kiyomichi ARAKI
Keyword(s):  
Millimeter Wave ◽  
High Gain ◽  
Low Noise ◽  
High Degree ◽  
Very High ◽  
Millimeter Wave Receiver
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