Fixed-Frequency 2-D Wide-Angle Scanning Leaky-Wave Array With Reconfigurable Probe-Fed Magneto-Electric Dipole
A new 2-D scanning leaky-wave antenna (LWA) design is proposed, with a scanning range larger than competitors. It consists of a 1-bit reconfigurable magneto-electric (ME) dipole array and a pillbox beam-forming network (BFN). The probe-fed ME dipole is minimized to fit the holographic method and is...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2025-01-01
|
| Series: | IEEE Open Journal of Antennas and Propagation |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10891697/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850207557725978624 |
|---|---|
| author | Kai Qin Bingjie Xiang Kwai-Man Luk |
| author_facet | Kai Qin Bingjie Xiang Kwai-Man Luk |
| author_sort | Kai Qin |
| collection | DOAJ |
| description | A new 2-D scanning leaky-wave antenna (LWA) design is proposed, with a scanning range larger than competitors. It consists of a 1-bit reconfigurable magneto-electric (ME) dipole array and a pillbox beam-forming network (BFN). The probe-fed ME dipole is minimized to fit the holographic method and is introduced in LWA for the first time. A p-i-n diode is loaded in the L-shaped directly-fed probe to control whether it radiates. The dispersion characteristic of the linear LWA is examined to validate the effectiveness of the holographic method. A procedure is proposed to select the port and hologram for any-angle 2-D beam scanning. The prototype is fabricated and measured, and the results demonstrate the improved scanning range. The scanning range under the 3 dB gain decline condition covers ±54° across the broadside in the H-plane and ±37° in the E-plane in simulation. This design has the advantage of a wider scanning angle, 2-D scanning capability, and low cost. It may find applications in sensing, base stations, and vehicle communications. |
| format | Article |
| id | doaj-art-6dc0c8583c8c4edda157d71068f79d7d |
| institution | OA Journals |
| issn | 2637-6431 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of Antennas and Propagation |
| spelling | doaj-art-6dc0c8583c8c4edda157d71068f79d7d2025-08-20T02:10:29ZengIEEEIEEE Open Journal of Antennas and Propagation2637-64312025-01-016261362010.1109/OJAP.2025.354325110891697Fixed-Frequency 2-D Wide-Angle Scanning Leaky-Wave Array With Reconfigurable Probe-Fed Magneto-Electric DipoleKai Qin0https://orcid.org/0000-0003-2912-5678Bingjie Xiang1https://orcid.org/0000-0003-1903-0704Kwai-Man Luk2https://orcid.org/0000-0002-8592-9307Department of Electrical Engineering, State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Hong Kong, SAR, ChinaDepartment of Electrical Engineering, State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Hong Kong, SAR, ChinaDepartment of Electrical Engineering, State Key Laboratory of Terahertz and Millimeter Waves, City University of Hong Kong, Hong Kong, SAR, ChinaA new 2-D scanning leaky-wave antenna (LWA) design is proposed, with a scanning range larger than competitors. It consists of a 1-bit reconfigurable magneto-electric (ME) dipole array and a pillbox beam-forming network (BFN). The probe-fed ME dipole is minimized to fit the holographic method and is introduced in LWA for the first time. A p-i-n diode is loaded in the L-shaped directly-fed probe to control whether it radiates. The dispersion characteristic of the linear LWA is examined to validate the effectiveness of the holographic method. A procedure is proposed to select the port and hologram for any-angle 2-D beam scanning. The prototype is fabricated and measured, and the results demonstrate the improved scanning range. The scanning range under the 3 dB gain decline condition covers ±54° across the broadside in the H-plane and ±37° in the E-plane in simulation. This design has the advantage of a wider scanning angle, 2-D scanning capability, and low cost. It may find applications in sensing, base stations, and vehicle communications.https://ieeexplore.ieee.org/document/10891697/Magneto-electric dipolefixed-frequency beam scanningholographic antennaleaky-wave antenna |
| spellingShingle | Kai Qin Bingjie Xiang Kwai-Man Luk Fixed-Frequency 2-D Wide-Angle Scanning Leaky-Wave Array With Reconfigurable Probe-Fed Magneto-Electric Dipole IEEE Open Journal of Antennas and Propagation Magneto-electric dipole fixed-frequency beam scanning holographic antenna leaky-wave antenna |
| title | Fixed-Frequency 2-D Wide-Angle Scanning Leaky-Wave Array With Reconfigurable Probe-Fed Magneto-Electric Dipole |
| title_full | Fixed-Frequency 2-D Wide-Angle Scanning Leaky-Wave Array With Reconfigurable Probe-Fed Magneto-Electric Dipole |
| title_fullStr | Fixed-Frequency 2-D Wide-Angle Scanning Leaky-Wave Array With Reconfigurable Probe-Fed Magneto-Electric Dipole |
| title_full_unstemmed | Fixed-Frequency 2-D Wide-Angle Scanning Leaky-Wave Array With Reconfigurable Probe-Fed Magneto-Electric Dipole |
| title_short | Fixed-Frequency 2-D Wide-Angle Scanning Leaky-Wave Array With Reconfigurable Probe-Fed Magneto-Electric Dipole |
| title_sort | fixed frequency 2 d wide angle scanning leaky wave array with reconfigurable probe fed magneto electric dipole |
| topic | Magneto-electric dipole fixed-frequency beam scanning holographic antenna leaky-wave antenna |
| url | https://ieeexplore.ieee.org/document/10891697/ |
| work_keys_str_mv | AT kaiqin fixedfrequency2dwideanglescanningleakywavearraywithreconfigurableprobefedmagnetoelectricdipole AT bingjiexiang fixedfrequency2dwideanglescanningleakywavearraywithreconfigurableprobefedmagnetoelectricdipole AT kwaimanluk fixedfrequency2dwideanglescanningleakywavearraywithreconfigurableprobefedmagnetoelectricdipole |