Miniaturized GPS Antenna Array and Test Results

2006 ◽  
Author(s):  
Alison Brown ◽  
Huan-Wan Tseng
Keyword(s):  
Antenna Array ◽  
Test Results ◽  
Gps Antenna

scholarly journals Implementation of wideband digital beam forming in the E-band

2011 ◽  
Vol 3 (3) ◽  
pp. 259-266 ◽  
Author(s):  
Val Dyadyuk ◽  
Xiaojing Huang ◽  
Leigh Stokes ◽  
Joseph Pathikulangara
Keyword(s):  
Antenna Array ◽  
Orthogonal Frequency Division Multiplexing ◽  
Small Scale ◽  
Beam Forming ◽  
Test Results ◽  
Phase Shift Keying ◽  
Angle Of Arrival ◽  
Phased Antenna Array ◽  
Quadrature Phase ◽  
Shift Keying

This paper reports the test results of a small-scale prototype that implements a digitally beam-formed phased antenna array in the E-band. A four-channel dual-conversion receive RF module for 71–76 GHz frequency band has been developed and integrated with a linear end-fire antenna array. Wideband frequency-domain angle-of-arrival estimation and beam-forming algorithms were developed and implemented using Orthogonal Frequency Division Multiplexing (OFDM) with Quadrature Phase-Shift Keying (QPSK) at 1 Gbps. Measured performance is very close to the simulated results and experimental data for an analogue-beam-formed array. This work is a stepping stone toward practical realization of larger hybrid arrays in the E-band.

scholarly journals Method for measuring the azimuth of an aerial target for a meter-range radar

2021 ◽  
pp. 26-31
Author(s):  
V. I. Ermoshkin ◽  
S. B. Shatkovsky ◽  
A. V. Shcherbinko ◽  
E. E. Fenyuk
Keyword(s):  
Fourier Transform ◽  
Fast Fourier Transform ◽  
Antenna Array ◽  
New Method ◽  
Test Results ◽  
Radio Waves ◽  
Statistical Estimates ◽  
Pulse Processing ◽  
The Mean ◽  
Further Development

The purpose of the study is to develop a new method that increases the accuracy of measuring the azimuth of an air target for stationary radars of the meter range of radio waves with a fixed antenna array and a small number of antenna elements. For this, the known methods are considered and their disadvantages are revealed. The new method proposed by the authors uses a digital radiation pattern with a fast Fourier transform after intra-pulse processing of signals from the receiving elements of the antenna array at a given frequency. To refine the azimuth, an inverse fast Fourier transform is used, followed by signal processing and repeated measurement for each target with a small step. Calculations and test results are presented. Comparisons of statistical estimates of the mean and standard deviation of azimuth measurement tests by various methods are presented. The scientific novelty and directions for further development of the topic with the use of the results obtained have been established.

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