Wideband antenna array for Digital Video Broadcast Terrestrial‐based passive bistatic radar applications

Abstract

A Digital Video Broadcast Terrestrial (DVB-T)-based passive radar requires the development of a dedicated antenna array that performs satisfactorily over the entire DVB-T band. The array should require no mechanical adjustments to the interelement spacing to correspond to the DVB-T carrier frequency used for any particular measurement. This study describes the challenges involved in designing an ultra high frequency (UHF) antenna array with a bandwidth of 450 MHz. The design procedure is discussed and a number of simulated array configurations are demonstrated. The final configuration of the array will be shown along with the simulations of the expected performance over the desired frequency span. Finally, the actual array is characterised to evaluate its performance based on data from anechoic chamber measurements.

Improved Beam-Scannable Ultra-Wideband Sparse Antenna Arrays by Iterative Convex Optimization Based on Raised Power Series Representation

“…U LTRA-wideband (UWB) antenna arrays are of great importance in many applications such as passive radars, microwave imaging systems, high-speed communications and radio astronomy [1], [2]. For the UWB array, the highest-to-lowest frequency ratio (HLFR) can reach 3:1 or even more.…”

IDEPAR: a multichannel digital video broadcasting‐terrestrial passive radar technological demonstrator in terrestrial radar scenarios

“…Digital video broadcasting‐terrestrial (DVB‐T) is of special interest due to its availability (it is widely implemented, and DVB‐T2 is operative in some countries, and under consideration for mid‐term in others), transmitted power and waveform [4–7]. Most of the demonstrators were validated in aerial scenarios (i.e.…”

Passive detection using orthogonal frequency division multiplex signals of opportunity without multipath clutter cancellation

“…PBR exploits existing transmitters as illuminators of opportunity to perform target detection and localisation, while avoiding radio frequency emissions, resulting in covert operation, low vulnerability, low cost, reduced impact on the environment etc. Among all the emitters available in the environment, digital broadcasters with orthogonal frequency division multiplex (OFDM) modulation, such as digital radio mondiale [9, 10], digital audio broadcasting [11], digital video broadcasting [12, 13], China mobile multimedia broadcasting (CMMB) [14], and digital terrestrial multimedia broadcasting (DTMB) [15], supply some of the most attractive choices, owing to their good signal characteristics and excellent coverages.…”