| Side Lobe Level Improvement Using a 1:2:2:1 Non-Uniformly Excited Sub-Array |
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Jinwoo Jung, Jaesin Kim, Duk-Chan Han |
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The 2st Research and Development Institute, Agency for Defense Development |
| 1:2:2:1 비균등 부배열을 이용한 부엽 레벨 개선 |
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정진우, 김재신, 한덕찬 |
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국방과학연구소 제2기술연구본부 |
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| Abstract |
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In this paper, we propose a new array antenna scheme which has an improved side lobe level (SLL) as well as a simplified feeding network and a high gain. The proposed array scheme is based on a non-uniformly excited sub-array. For analysis, we use an array factor of sub-array antenna. In the simulation results, the simulated SLL and gain provide more than 18.43 dB and 26.63 dBi, respectively. For the verification of the proposed design scheme, the prototype antenna with $16{ imes}8$ radiating elements was designed by the proposed array scheme. The measured SLL and gain are more than 19.85 dB and 25.53 dBi, respectively. This measurement result indicates that the proposed array scheme is reasonable. |
| Key Words:
Antenna, Array, Sub-Array, Side Lobe Level, High Gain |
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