scholarly journals Design and simulation of an analog beamforming phased array antenna

2020 ◽  
Vol 10 (2) ◽  
pp. 1398
Author(s):  
Mohamed Elhefnawy
Keyword(s):  
Phase Shift ◽  
Antenna Array ◽  
Phased Array ◽  
Axial Ratio ◽  
Array Antenna ◽  
Design System ◽  
Phased Array Antenna ◽  
Front End ◽  
Rf Front End ◽  
Simulation Results

In this paper, a phased array antenna is designed and simulated. The antenna array consists of four circularly polarized slotted waveguide elements. The antenna array is simulated using CST MWS. The simulation results for the proposed antenna array at different values of progressive phase shift demonstrate that the S‒parameters for all four ports are less than ‒10 dB over at least 2% bandwidth, the simulated maximum gain is 13.95 dB, the simulated beamwidth can be 19˚ or narrower based on the value of the progressive phase shift. , the range of frequencies over which the simulated Axial Ratio (AR) is below 3 dB is not fixed and varied according to the selected progressive phase shift. The proposed four-element RF front-end is simulated using Advanced Design System (ADS) at operating frequency of 9.6 GHz. The obtained simulation results by ADS indicate the feasibility of implementing the proposed RF-front end for feeding the antenna array to realize analog beamforming.

scholarly journals A Novel Design of Slotted Waveguide Phased Array Antenna

2019 ◽  
Vol 8 (3) ◽  
pp. 16-22 ◽  
Author(s):  
M. Elhefnawy ◽  
A. A. Al-Hadi
Keyword(s):  
Phase Shift ◽  
Phased Array ◽  
Axial Ratio ◽  
Array Antenna ◽  
Frequency Range ◽  
Phased Array Antenna ◽  
S Parameters ◽  
Slotted Waveguide ◽  
Almost All ◽  
Novel Design

A novel design of phased array antenna based on a Slotted Waveguide Antenna Array (SWAA) is introduced in this paper. The CST Microwave Studio simulation results show that the S‒parameters, the gain, the axial ratio, and the beamwidth of the proposed phased array antenna are affected by the value of the progressive phase shift. The simulated results of the proposed phased array antenna at different values of progressive phase demonstrate that the S‒parameters for almost all ports are less than ‒10 dB over at least 2% bandwidth, the simulated phased array antenna gain is above 17 dB in the frequency range from 9.5 GHz to 9.7 GHz, the range of frequencies over which the simulated Axial Ratio (AR) is below 3 dB is not fixed and varied according to the selected progressive phase, the simulated beamwidth can be 6.5˚ or narrower based on the value of the progressive phase shift.

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 Research on Quantization Error Influence of Millimeter-Wave Phased Array Antenna

2021 ◽  
Vol 2021 ◽  
pp. 1-19
Author(s):  
Haigen Yang ◽  
Linqun Zhu ◽  
Zhun Xia ◽  
Yanqing Chen ◽  
Luohao Dai ◽  
...  
Keyword(s):  
Antenna Array ◽  
Millimeter Wave ◽  
Phased Array ◽  
Electromagnetic Coupling ◽  
Random Phase ◽  
Array Antenna ◽  
Electrical Performance ◽  
Phased Array Antenna ◽  
Position Errors ◽  
Phase Errors

The millimeter-wave phased array antenna is a higher integration system that is composed of different subarray modules, and in actual engineering, the existing amplitude, phase errors, and structural errors will change the performance of the array antenna. This paper studies the influence of the random amplitude and phase errors of the antenna array in the actual assembly process and the actual position errors between the subarrays on the electrical performance of the antenna. Based on the planar rectangular antenna array-electromagnetic coupling model, we propose a method of verifying the effect of random errors on the phased array antenna. The simulation result shows that the method could obtain the critical value of the error generated by the antenna subarray during processing and assembly. To reduce the error factor, it is necessary to ensure that the random phase and amplitude error should not exceed 10 ° , 0.5   dB . The error in the X-direction during assembly should be ≤ 0.05 λ , and the error in the Y-direction should be ≤ 0.1 λ . When symmetrical deformation occurs, the maximum deformation should be less than 0.05 λ .

scholarly journals RESEARCH OF MICROWAVE CIRCUITS CONTROL COMPUTER APPLIANCES IN RECEIVER-TRANSMITTER MODULE OF ACTIVE PHASED ARRAY ANTENNA

2020 ◽  
Author(s):  
Yuri Makievsky
Keyword(s):  
Control System ◽  
Phase Shift ◽  
Phased Array ◽  
Microwave Circuits ◽  
Array Antenna ◽  
Phased Array Antenna ◽  
Control Module ◽  
Universal Control ◽  
Control Computer

Design conception of control module of microwave receiver-transmitter module of active phased array antenna is presented in this work. Universal control module is designed for reception of commands from antenna control system and transmission of commands to multidigit phase shift modules, attenuators and switches. It also provide module addressing. Logic of assignment of adresses to users and division of them to groups is realised

scholarly journals DIAGNOSTICS OF HEADLIGHTS FROM NEAR AREA ON PLACE OF BASING

2020 ◽  
Vol 3 (61) ◽  
pp. 124-127
Author(s):  
O. Besova ◽  
V. Karlov ◽  
O. Lukashuk ◽  
I. Petryshenko
Keyword(s):  
Antenna Array ◽  
Phased Array ◽  
Phase Distribution ◽  
Near Field ◽  
Operating Time ◽  
Array Antenna ◽  
Phased Array Antenna ◽  
Phased Antenna Array ◽  
Near Zone ◽  
Microwave Diagnostics

Methods of microwave diagnostics of a phased array allow reconstructing the amplitude-phase distribution in the antenna and implement on this basis methods for adapting the lattice control to those found in the amplitude-phase distribution to defects. The methods of microwave diagnostics from the near zone described in the well-known literature are realizable only in anechoic chambers or on specially equipped training grounds. To solve the problems of adapting a phased antenna array to a technical state and increasing its operating time under extreme conditions, it is necessary to have methods of integrated microwave diagnostics of a phased antenna array at its location. The aim of the article is to develop a method for microwave diagnostics of a phased array antenna, implemented from the near zone of the antenna at its location, and eliminating the influence of echo signals (ES) on the diagnostic results. The article proposes a method for microwave diagnostics of a phased array antenna from the near field, which allows to exclude the influence on the accuracy of diagnostics of the echo signal present at the measuring site and errors in the positioning of the measuring probe. The proposed method will make it possible to implement microwave diagnostics of the antenna from the near field at its location. The results of microwave diagnostics are supposed to be used to implement various methods of adapting a phased array to a technical condition, significantly increasing its life

scholarly journals Analysis of the influence of radiators basing errors in the monopulse phased array antenna aperture on its characteristics

2019 ◽  
Vol 30 ◽  
pp. 05019
Author(s):  
Yury Rusov
Keyword(s):  
Antenna Array ◽  
Radiation Pattern ◽  
Antenna Arrays ◽  
Phased Array ◽  
Array Antenna ◽  
Beam Forming ◽  
Phased Array Antenna ◽  
Antenna Aperture ◽  
Forming Accuracy ◽  
The Difference

The influence of radiators basing errors in the flat monopulse phased array antenna with spatial excitation on the beam forming accuracy is researched. The results of calculations of the deviation of the position of the difference radiation pattern minimum depending on the displacement of the antenna array radiators for antenna arrays with diameters from 10 to 100 wavelengths are presented.

scholarly journals Application of the transmit active phased array antenna in a radar complex of the sensing of the lunar soil.

2021 ◽  
Author(s):  
D.A. Semenov ◽  
Keyword(s):  
Antenna Array ◽  
Phased Array ◽  
Lunar Soil ◽  
Array Antenna ◽  
Radar Signal ◽  
Phased Array Antenna ◽  
Active Mode ◽  
Phased Antenna Array

The principles of radar sounding of lunar soil are revealed. The characteristics of the receiving-transmitting active phased antenna array and the possibility of its use in the transmission/reception of the probing radar signal in the study of lunar soil in the active mode from the flight scientific module are analyzed.

Sign in / Sign up

Export Citation Format

Share Document