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Content Provider | IET Digital Library |
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Author | Yashchyshyn, Yevhen Godziszewski, Konrad Bogdan, Grzegorz Piasecki, Przemysław |
Abstract | A concept of a low-cost beamforming system is investigated by developing an inexpensive microstrip antenna array and proposing an appropriate approach for a beamforming. The antenna structure is composed of individually fabricated linear sub-arrays suspended over the ground plane. The design is scalable, because an antenna array with required radiation pattern can be designed by using adequate number of linear sub-arrays. A novel cone-shaped transition surrounding the probe feed has been applied to decrease an inductive reactance of the input impedance. The antenna array composed of four linear sub-arrays has been designed, fabricated and measured to validate performance of the proposed low-cost design. The measured gain of a fabricated antenna is >26 dBi and the reflection coefficient is better than −10 dB. Each sub-array has a separate coaxial connector, therefore beam scanning can be achieved by controlling radio frequency signals in each sub-array. Two methods of beam scanning, a phased array approach and a time modulation approach, have been proposed and compared in terms of efficiency, cost and functionality. |
Starting Page | 2174 |
Ending Page | 2178 |
Page Count | 5 |
ISSN | 17518725 |
Volume Number | 11 |
e-ISSN | 17518733 |
Issue Number | Issue 15, Dec (2017) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/11/15 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2017.0205 |
Journal | IET Microwaves, Antennas & Propagation |
Publisher Date | 2017-08-25 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Antenna Array Antenna Phased Array Antenna Radiation Pattern Antenna Structure Array Signal Processing Coaxial Connector Cone-shaped Transition Connector Electric Connectors Ground Plane Linear Antenna Array Linear SubArray Low-cost Beam Scanning Low-cost Beamforming System Microstrip Antenna Array Modulation Modulation And Coding Method Phased Array Approach Radiation Pattern Radio Frequency Signal Signal Processing And Detection Time Modulation Approach X-band Antenna Array |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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