Design of a Wideband Vivaldi Antenna Array

2014 ◽  
Vol 668-669 ◽  
pp. 1253-1256
Author(s):  
Bo Zhang
Keyword(s):  
Antenna Array ◽  
High Frequency ◽  
Lattice Spacing ◽  
Phased Array ◽  
Phased Arrays ◽  
Wide Angle ◽  
Modular Construction ◽  
Phased Array Antenna ◽  
Grating Lobe ◽  
Vivaldi Antenna

Phased arrays for use in future multifunction systems require wideband elements capable of wide angle scanning. Here we describe the design of a Balance Antipodal Vivaldi Antenna for use in large phased array antenna apertures. The BAVA element height and the array lattice spacing are about λ/2 at the high frequency end of a grating-lobe free operating band. BAVA elements do not require connection with adjacent elements and are therefore attractive for use in phased arrays with modular construction.

Research on the Conformal Phased-Array Antenna

2014 ◽  
Vol 685 ◽  
pp. 324-327
Author(s):  
Shuang Zhao ◽  
Yu Bo Yue
Keyword(s):  
Mathematical Model ◽  
Antenna Array ◽  
Phased Array ◽  
Design Method ◽  
Array Antenna ◽  
Phased Array Antenna ◽  
Conformal Antenna ◽  
Conformal Array ◽  
Design Requirements ◽  
The Mathematical Model

The mathematical model of conformal antenna array is the premise and basis of the conformal array antenna signal processing. Based on the analysis of the antenna array, a design method for adjusting the direction of the conformal array antenna is proposed. Through simulation, the pattern of antenna meets the actual needs of the project and it reaches pre design requirements.

scholarly journals Wide-Angle Scanning Phased Array Antenna using High Gain Pattern Reconfigurable Antenna Elements

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
ByungKuon Ahn ◽  
In-June Hwang ◽  
Kwang-Seok Kim ◽  
Soo-Chang Chae ◽  
Jong-Won Yu ◽  
...  
Keyword(s):  
Phased Array ◽  
High Gain ◽  
Array Antenna ◽  
Reconfigurable Antenna ◽  
Wide Angle ◽  
Phased Array Antenna ◽  
Design Guideline ◽  
Phased Array Antennas ◽  
Array Antennas ◽  
Scanning Range

AbstractThis paper presents a wide-angle scanning phased array antenna using high gain pattern reconfigurable antenna (PRA) elements. Using PRA elements is an attractive solution for wide-angle scanning phased array antennas because the scanning range can be divided into several subspaces. To achieve the desired scanning performance, some characteristics of the PRA element such as the number of switching modes, tilt angle, and maximum half-power beamwidth (HPBW) are required. We analyzed the required characteristics of the PRA element according to the target scanning range and element spacing, and presented a PRA element design guideline for phased array antennas. In accordance with the guideline, the scanning range was set as ±70° and a high gain PRA element with three reconfigurable patterns was used to compose an 8x1 array antenna with 0.9 λ0 spacing. After analyzing whether the active element patterns meet the guideline, the array antenna was fabricated and measured to demonstrate the scanning performance. The fabricated array can scan its beam from -70° to 70° by dividing the scanning range into three subspaces. It shows that even if the array antenna has large element spacing, the desired scanning performance can be obtained using the elements designed under the guideline.

scholarly journals Development of Enabling Technologies for Ku-Band Airborne SATCOM Phased-Arrays

Electronics ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 488
Author(s):  
Alfredo Catalani ◽  
Giovanni Toso ◽  
Piero Angeletti ◽  
Mario Albertini ◽  
Pasquale Russo
Keyword(s):  
Phased Array ◽  
Phased Arrays ◽  
Satellite Communications ◽  
Antenna System ◽  
Array Antenna ◽  
Commercial Product ◽  
Dual Polarization ◽  
Phased Array Antenna ◽  
Radiating Element ◽  
Ku Band

In the paper the development of a fully electronic transmit-receive phased-array antenna system in Ku-band for aircraft communications via satellite is presented. Particular emphasis has been placed in the improvement of the following key elements: a dual-polarization self-diplexing radiating element, a transmit/receive active module with full polarization agility based on a digital vector modulator and a SiGe multinode MMIC. The optimized antenna elements enable a significant improvement towards the realization of a future affordable commercial product for satellite communications.

scholarly journals Pulse Dispersion in Phased Arrays

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Randy L. Haupt ◽  
Payam Nayeri
Keyword(s):  
Phased Array ◽  
Phased Arrays ◽  
Separation Distance ◽  
Phase Shifting ◽  
Phased Array Antenna ◽  
Phased Array Antennas ◽  
Wideband Signals ◽  
First Results ◽  
Definition Of ◽  
The Time Domain

Phased array antennas cause pulse dispersion when receiving or transmitting wideband signals, because phase shifting the signals does not align the pulse envelopes from the elements. This paper presents two forms of pulse dispersion that occur in a phased array antenna. The first results from the separation distance between the transmit and receive antennas and impacts the definition of far field in the time domain. The second is a function of beam scanning and array size. Time delay units placed at the element and/or subarrays limit the pulse dispersion.

scholarly journals Metamaterial‐based linear phased array antenna with improved wide‐angle scanning bandwidth by parasitic metal strips

2021 ◽  
Vol 15 (13) ◽  
pp. 1699-1709
Author(s):  
Qi Zhang ◽  
Wen Jiang ◽  
Peng Liu ◽  
Kun Wei ◽  
Wei Hu ◽  
...  
Keyword(s):  
Phased Array ◽  
Array Antenna ◽  
Wide Angle ◽  
Phased Array Antenna
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