| Autor: |
Saeid Alamdar, Karim Mohammadpour-Aghdam, Hossein Khalili |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
IEEE Access, Vol 12, Pp 11936-11944 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2169-3536 |
| DOI: |
10.1109/ACCESS.2024.3355055 |
| Popis: |
This study presents the design, fabrication, and measurement of a compact microstrip monopulse antenna array for surveillance applications. The design process and limitations of the planar antenna structure are discussed, including the stacking of two radiating elements as a parasitic loaded patch antenna to increase bandwidth and suppress mutual coupling. A distributed feeding network for $8\times 16$ elements with an integrated monopulse comparator, was designed and optimized, with the comparator placed in a separate layer to prevent spurious radiation. The operating frequency is 15.5-18 GHz, and the antenna exhibited a bandwidth of approximately 15%. The measurement results for the fabricated antenna array align with the simulations and design goals, with sidelobe levels of the beam better than 17 dB in both the E- and H-plane, and a null depth in the Delta pattern of less than −30 dB. The peak gain at the operating frequency is 22.3 dB and the total efficiency of the antenna array is approximately 55%. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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