Kochar, A and Vinoy, KJ (2019) An analysis of achievable highest SLL in moderate phased arrays with quantized control. In: 2019 IEEE MTT-S International Microwave and RF Conference, IMARC 2019, 13-15 December 2019, Mumbai; India.
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Abstract
Phased arrays with discrete control circuitry for amplitudes and phases are analysed to investigate the impact of finite resolution phase sifters and RF attenuators on the achievable highest side lobe level (HSLL). Finite dynamic range offered by RF attenuators also limits the value of HSLL that can be achieved. The achieved HSLL may lie between 25 to 40 dB for practical values of dynamic range, depending on the array size and number of control bits. This aspect is studied for Chebyshev and discrete prolate spheroidal sequences (DPSS) arrays of different lengths. Finally, a novel approach for quantizing phases is proposed for reducing HSLL degradation. © 2019 IEEE.
| Item Type: | Conference Paper |
|---|---|
| Publication: | 2019 IEEE MTT-S International Microwave and RF Conference, IMARC 2019 |
| Publisher: | Institute of Electrical and Electronics Engineers Inc. |
| Additional Information: | cited By 0; Conference of 2019 IEEE MTT-S International Microwave and RF Conference, IMARC 2019 ; Conference Date: 13 December 2019 Through 15 December 2019; Conference Code:161267 |
| Keywords: | Control bits; Discrete Control; Discrete prolate spheroidal sequences (DPSS); Dynamic range; Finite resolution; Quantized control; RF attenuator; Sidelobe levels |
| Department/Centre: | Division of Electrical Sciences > Electrical Communication Engineering |
| Date Deposited: | 02 Dec 2020 07:16 |
| Last Modified: | 02 Dec 2020 07:16 |
| URI: | http://eprints.iisc.ac.in/id/eprint/66127 |
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