Results 91 to 100 of about 181,285 (205)

Optical control of an 8-element Ka-band phased array using a high-speed optoelectronic interconnect [PDF]

Optical distribution of control signals in electronically steered phased array antennas is being considered. A demonstration experiment is described in which a high speed hybrid GaAs optoelectronic integrated circuit (OEIC) was used to control an eight ...
Bendett, M., Bhasin, K. B., Claspy, P. C., Richard, M. A.   +3 more
core   +1 more source

An SIW Quasi-Pyramid Horn Antenna Based on Patch Coupling Feed for Automotive Radar Sensors

Remote Sensing
An SIW quasi-pyramidal horn antenna based on patch coupling feed with reduced machining difficulty and facilitated integration with the radar chip is proposed in this paper.
Pengchao Zhao, Na Li, Yiqun Zhang, Naigang Hu   +3 more
doaj   +1 more source

Numerical Results for the System Noise Temperature of an Aperture Array Tile and Comparison with Measurements [PDF]

, 2011
The purpose of this report is to document the noise performance of a complex beamforming array antenna system and to characterize the recently developed noise measurement facility called THACO, which was developed at ASTRON.
Bakker, L., Ivashina, M. V., Witvers, R. H., Woestenburg, E. E. M.   +3 more
core  

Fundamentals of Antennas and Antenna Arrays

Abstract In many modern radar applications in the millimeter wave range, the radar must determine not only the range and velocity of a target, but also its angle at which it is located in relation to the radar. For this purpose, antenna arrays are required, i.e. a group of antennas.
Christian Waldschmidt, Christina Bonfert, Timo Grebner   +2 more
openaire   +1 more source

Microstrip Yagi array for MSAT vehicle antenna application [PDF]

A microstrip Yagi array was developed for the MSAT system as a low-cost mechanically steered medium-gain vehicle antenna. Because its parasitic reflector and director patches are not connected to any of the RF power distributing circuit, while still ...
Densmore, Arthur, Huang, John, Pozar, David   +2 more
core   +1 more source

Eight port millimeter wave HMSIW MIMO antenna array for V2V communication

Scientific Reports
In this paper, an eight-port millimeter-wave multiple-input-multiple-output (MIMO) antenna array operating at 28 GHz for vehicle to vehicle (V2V) communication is designed and developed. It consists of eight 2 × 2 half-mode substrate integrated waveguide
Gunjan Srivastava, Amit Kumar, Vimal Kumar, Akhilesh Mohan, Sachin Kumar, Om Prakash Kumar   +5 more
doaj   +1 more source

Ku-band high gain antenna [PDF]

An exposed four element array of 12.8 m diameter elements mounted on a common pedestal is the recommended ground antenna configuration in support of the 2 GHz bandwidth Ku-band downlink from tdr satellites.
Deerkoski, L. F.
core   +1 more source

Angular Scan Enhancement of Ka-Band Circularly Polarized Phased Array Using Dielectric Dome

IEEE Access
This paper introduces a dielectric dome designed to enhance the angular scan of a circularly polarized phased array antenna at 29 GHz, while reducing broadside loss. The dome was created using a straightforward calculation-based approach. An $8\times 8$
Ebenezer Tawiah Ashong, Van Thang Nguyen, Jae-Young Chung   +2 more
doaj   +1 more source

Low sidelobe planar electrically large sparse array antenna with element number reduction based on genetic algorithm

IET Microwaves, Antennas & Propagation
Conventionally, both electrically larger (EL) arrays and sparse arrays offer the advantage of element number reduction but disadvantage of high sidelobe levels.
Yangkun Zhu, Wenyu Ma, Chuang Wang, Wenquan Cao   +3 more
doaj   +1 more source

Wide-bandwidth high-resolution search for extraterrestrial intelligence [PDF]

Research accomplished in the following areas is discussed: the antenna configuration; HEMT low-noise amplifiers; the downconverter; the Fast Fourier Transform Array; the backend array; and the backend and ...
Horowitz, Paul
core   +1 more source