A V-band micromachined 2-D beam-steering antenna driven by magnetic force with polymer-based hinges

2003 ◽  
Vol 51 (1) ◽  
pp. 325-331 ◽  
Author(s):  
Chang-Wook Baek ◽  
Seunghyun Song ◽  
Jae-Hyoung Park ◽  
Sanghyo Lee ◽  
Jung-Mu Kim ◽  
...  
Keyword(s):  
Magnetic Force ◽  
Beam Steering ◽  
V Band

Low-Cost Transmitarray Antenna Designs in V-Band based on Unit-Cells with 1 Bit Phase Resolution

Frequenz ◽  
2019 ◽  
Vol 73 (11-12) ◽  
pp. 355-366
Author(s):  
Martin Frank ◽  
Benedict Scheiner ◽  
Fabian Lurz ◽  
Robert Weigel ◽  
Alexander Koelpin
Keyword(s):  
Low Cost ◽  
Beam Steering ◽  
Experimental Characterization ◽  
Frequency Range ◽  
Steering Angle ◽  
V Band ◽  
Unit Cells ◽  
Linearly Polarized ◽  
Phase Resolution

Abstract This paper presents the design and characterization of linearly polarized low-cost transmitarray antennas with ± 70° azimuth beamforming range in V-band in order to add beam steering functionality to existing radar front ends. The transmitarray antennas are composed of 13 × 13 planar unit-cells. The unit-cells consist of two layers of RO4350B laminate and provide a one bit phase resolution. The desired unit-cell behavior has been validated by simulations and measurements. Eight transmitarrays with different phase distributions have been designed and fabricated to realize different beam steering angles in azimuth. The experimental characterization of the radiation patterns shows the desired performance in the frequency range from 59 GHz to 63 GHz. Additionally, steering angle combinations in azimuth and elevation up to 40° have been realized and successfully demonstrate by measuring the 2D radiation pattern.

V-band Single-Platform Beam Steering Transmitters Using Micromachining Technology

2006 ◽  
Author(s):  
Sanghyo Lee ◽  
Jung-mu Kim ◽  
Jong-man Kim ◽  
Yong-kweon Kim ◽  
Changyul Cheon ◽  
...  
Keyword(s):  
Beam Steering ◽  
V Band

A V-Band Beam-Steering Antenna on a Thin-Film Substrate With a Flip-Chip Interconnection

2008 ◽  
Vol 18 (4) ◽  
pp. 287-289 ◽  
Author(s):  
Sanghyo Lee ◽  
Sangsub Song ◽  
Youngmin Kim ◽  
Jangsoo Lee ◽  
Chang-Yul Cheon ◽  
...  
Keyword(s):  
Thin Film ◽  
Flip Chip ◽  
Beam Steering ◽  
V Band ◽  
Film Substrate

$V$ -Band High-Gain Printed Quasi-Parabolic Reflector Antenna With Beam-Steering

2017 ◽  
Vol 65 (4) ◽  
pp. 1589-1598 ◽  
Author(s):  
Alister Hosseini ◽  
Saman Kabiri ◽  
Franco De Flaviis
Keyword(s):  
Beam Steering ◽  
High Gain ◽  
Reflector Antenna ◽  
Parabolic Reflector ◽  
V Band

V-Band Beam-Steering ASK Transmitter and Receiver Using BCB-Based System-on-Package Technology on Silicon Mother Board

2011 ◽  
Vol 21 (11) ◽  
pp. 619-621 ◽  
Author(s):  
Inchan Ju ◽  
Youngmin Kim ◽  
Sanghyo Lee ◽  
Sangsub Song ◽  
Jangsoo Lee ◽  
...  
Keyword(s):  
Beam Steering ◽  
V Band

Low-cost Transmitarray Antenna Designs with ±70° Beam Steering Range in V-Band

2019 ◽  
Author(s):  
Martin Frank ◽  
Fabian Lurz ◽  
Robert Weigel ◽  
Alexander Koelpin
Keyword(s):  
Low Cost ◽  
Beam Steering ◽  
V Band

scholarly journals Air-bridged Schottky diodes for dynamically tunable millimeter-wave metamaterial phase shifters

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Evangelos Vassos ◽  
James Churm ◽  
Jeff Powell ◽  
Colin Viegas ◽  
Byron Alderman ◽  
...  
Keyword(s):  
Schottky Diode ◽  
Flip Chip ◽  
Phase Shifter ◽  
Beam Steering ◽  
Schottky Diodes ◽  
Phase Shifters ◽  
Unit Cell ◽  
V Band ◽  
Potential Applications ◽  
Average Loss

AbstractA low loss metamaterial unit cell is presented with an integrated GaAs air-bridged Schottky diode to produce a dynamically tunable reflective phase shifter that is capable of up to 250° phase shift with an experimentally measured average loss of 6.2 dB at V-band. The air-bridged Schottky diode provides a tuneable capacitance in the range between 30 and 50 fF under an applied reverse voltage bias. This can be used to alter the resonant frequency and phase response of a split patch unit cell of a periodic metasurface. The air-bridged diode die, which is flip-chip soldered to the patch, has ultra-low parasitic capacitance and resistance. Simulated and measured results are presented which verify the potential for the attainment of diode switching speeds with acceptable losses at mmWave frequencies. Furthermore the study shows that this diode-based unit cell can be integrated into metamaterial components, which have potential applications in future mmWave antenna beam-steering, intelligent reflecting surfaces for 6G communications, reflect-arrays, transmit-arrays or holographic antennas.

Symmetric-pair antennas for beam steering, direction finding or isotropic-reception gain

1991 ◽  
Vol 138 (4) ◽  
pp. 368 ◽  
Author(s):  
R. Benjamin ◽  
W. Titze ◽  
P.V. Brennan ◽  
H.D. Griffiths
Keyword(s):  
Beam Steering ◽  
Direction Finding ◽  
Symmetric Pair

Influence of unbalanced magnetic force on shaft deflection in permanent magnet synchronous motor with fractional slot concentrated windings

2020 ◽  
Vol 64 (1-4) ◽  
pp. 1461-1468
Author(s):  
Ting Dong ◽  
Juyan Huang ◽  
Bing Peng ◽  
Ling Jian
Keyword(s):  
Permanent Magnet ◽  
Magnetic Force ◽  
Permanent Magnet Synchronous Motor ◽  
Operational Reliability ◽  
Topology Structure ◽  
Permanent Magnet Synchronous Motors ◽  
Synchronous Motors ◽  
Shaft Deflection ◽  
Large Length ◽  
Fractional Slot

The calculation accuracy of unbalanced magnetic forces (UMF) is very important to the design of rotor length, because it will effect the shaft deflection. But in some permanent magnet synchronous motors (PMSMs) with fractional slot concentrated windings (FSCW), the UMF caused by asymmetrical stator topology structure is not considered in the existing deflection calculation, which is very fatal for the operational reliability, especially for the PMSMs with the large length-diameter ratio, such as submersible PMSMs. Therefore, the part of UMF in the asymmetrical stator topology structure PMSMs caused by the choice of pole-slot combinations is analysized in this paper, and a more accurate rotor deflection calculation method is also proposed.

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