High-Gain Millimeter-Wave Beam Scanning Transmitarray Antenna
In this article, a high-gain millimeter-wave transmitarray antenna (TAA) maintaining scanning ability is developed, integrating an array feed as the primary emitter. The work is achieved within a limited aperture area, avoiding the replacement or extension of the array. The addition of a set of defo...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-05-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/23/10/4709 |
| _version_ | 1797598354460377088 |
|---|---|
| author | Hao-Zheng Yang Shi-Wei Qu |
| author_facet | Hao-Zheng Yang Shi-Wei Qu |
| author_sort | Hao-Zheng Yang |
| collection | DOAJ |
| description | In this article, a high-gain millimeter-wave transmitarray antenna (TAA) maintaining scanning ability is developed, integrating an array feed as the primary emitter. The work is achieved within a limited aperture area, avoiding the replacement or extension of the array. The addition of a set of defocused phases along the scanning direction to the phase distribution of the monofocal lens allows the converging energy to be dispersed into the scanning scope. The beam forming algorithm proposed in this article can determine the excitation coefficients of the array feed source, and is beneficial to improve the scanning capability in array-fed transmitarray antennas. A transmitarray based on the square waveguide element illuminated by an array feed is designed with a focal-to-diameter ratio (F/D) of 0.6. A 1-D scan with a scope of −5° to 5° is realized through calculation. The measured results show that the transmitarray can achieve a high gain, 37.95 dBi at 160 GHz, although a maximum 2.2 dB error appears compared with the calculation in the operating band of 150–170 GHz. The proposed transmitarray has been proven to generate scannable high-gain beams in the millimeter-wave band and is expected to demonstrate its potential in other applications. |
| first_indexed | 2024-03-11T03:20:03Z |
| format | Article |
| id | doaj.art-06dea6c3ad4d4a369f00d9f14328d183 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T03:20:03Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-06dea6c3ad4d4a369f00d9f14328d1832023-11-18T03:11:21ZengMDPI AGSensors1424-82202023-05-012310470910.3390/s23104709High-Gain Millimeter-Wave Beam Scanning Transmitarray AntennaHao-Zheng Yang0Shi-Wei Qu1School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, ChinaSchool of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, ChinaIn this article, a high-gain millimeter-wave transmitarray antenna (TAA) maintaining scanning ability is developed, integrating an array feed as the primary emitter. The work is achieved within a limited aperture area, avoiding the replacement or extension of the array. The addition of a set of defocused phases along the scanning direction to the phase distribution of the monofocal lens allows the converging energy to be dispersed into the scanning scope. The beam forming algorithm proposed in this article can determine the excitation coefficients of the array feed source, and is beneficial to improve the scanning capability in array-fed transmitarray antennas. A transmitarray based on the square waveguide element illuminated by an array feed is designed with a focal-to-diameter ratio (F/D) of 0.6. A 1-D scan with a scope of −5° to 5° is realized through calculation. The measured results show that the transmitarray can achieve a high gain, 37.95 dBi at 160 GHz, although a maximum 2.2 dB error appears compared with the calculation in the operating band of 150–170 GHz. The proposed transmitarray has been proven to generate scannable high-gain beams in the millimeter-wave band and is expected to demonstrate its potential in other applications.https://www.mdpi.com/1424-8220/23/10/4709high gainbeam scanningtransmitarray antennamillimeter-wave band |
| spellingShingle | Hao-Zheng Yang Shi-Wei Qu High-Gain Millimeter-Wave Beam Scanning Transmitarray Antenna Sensors high gain beam scanning transmitarray antenna millimeter-wave band |
| title | High-Gain Millimeter-Wave Beam Scanning Transmitarray Antenna |
| title_full | High-Gain Millimeter-Wave Beam Scanning Transmitarray Antenna |
| title_fullStr | High-Gain Millimeter-Wave Beam Scanning Transmitarray Antenna |
| title_full_unstemmed | High-Gain Millimeter-Wave Beam Scanning Transmitarray Antenna |
| title_short | High-Gain Millimeter-Wave Beam Scanning Transmitarray Antenna |
| title_sort | high gain millimeter wave beam scanning transmitarray antenna |
| topic | high gain beam scanning transmitarray antenna millimeter-wave band |
| url | https://www.mdpi.com/1424-8220/23/10/4709 |
| work_keys_str_mv | AT haozhengyang highgainmillimeterwavebeamscanningtransmitarrayantenna AT shiweiqu highgainmillimeterwavebeamscanningtransmitarrayantenna |