Paper title:

Method Proposal for Minimize the Phase Shifters Differential Voltage applicable in Phase-Only Controlled Antenna Arrays

Published in: Issue 2, (Vol. 15) / 2021
Publishing date: 2021-11-14
Pages: 9-14
Author(s): ADOMNITEI Cezar-Ion, DIMIAN Mihai, YOU Ang, LESANU Cezar-Eduard, DONE Adrian
Abstract. The behavior of vector modulator - based phase shifters containing the AD8340 chip manufactured by Analog Devices was analyzed in different manners than those in the previous tests, which were performed on scattering parameters using the logarithmic scale, in a high dynamic range. The measurements described herein, performed in a small dynamic range using the linear scale, on the differential voltages between phase shifters (of the order of hundreds of millivolts) as a function of phase setpoints, showed that, reported in the same order of magnitude, can reach high values, which affect the directivity of phase-only controlling antenna systems, in a more difficult way to control. The purpose of the research described in this paper is to propose a method implemented in the command software of external voltages for AD8340-based phase shifters for minimizing these dependencies, which ensures the linearization of the amplitude of the differential voltage between the phase shifters, in relation to the phase setpoints.
Keywords: Vector Modulators, Beamforming, Phased Array Antenna, Smart Antenna Systems

1. H.J. Visser, Array and Phased Array Antenna Basics, John, Wiley & Sons Ltd., 2005.

2. Octavian Manu, Mihai Dimian, Adrian Graur, “Radiation Pattern Analysis and Advanced Phase Shifter Development for designing Phased Smart Antenna Arrays,” Electronics and Electrical Engineering, (2012), 117. 1392-1215. 10.5755/j01.eee.117.1.1063.

3. Octavian Manu, Mihai Dimian, Adrian Graur, “Influence of quantization errors on the development of vector modulator based phaseshifter for use in Smart Antenna applications”, 17th IEEE International Symposium for Design and Technology in Electronic Packaging (SIITME), 2011.

4. F. Caspers, “RF engineering basic concepts: S-parameters”, CERN, Geneva, Switzerland,

5. Analog Devices, “AD9340 RF Vector Modulator”,

6. Khalil Sayidmarie, Mohammed Saghurchy, (2011), “Array beam Scanning by Variation of Elements Amplitude-Only Excitations”, 10.1109/MAPE.2011.6156133.


8. Nguyen Thanh Huong, “Beamforming Phased Array Antenna toward Indoor Positioning Applications”, Open access peer-reviewed chapter, Published: August 4th 2020, DOI: 10.5772/intechopen.93133,

Back to the journal content
Creative Commons License
This article is licensed under a
Creative Commons Attribution-ShareAlike 4.0 International License.
Home | Editorial Board | Author info | Archive | Contact
Copyright JACSM 2007-2021