Hybrid-fed Enhanced Gain Circularly Polarized Shared Aperture Antenna Array for X/K-band Airborne Synthetic Aperture Radar Applications

Kothapudi, Venkata Kishore; Kati, Praveena; Nunna, Bala Ankaiah; Shivagari, Sushanth Reddy; Mindala, Pavan Sagar; Kandhi, Hari Vara Prasad Reddy; Kota, Praveen Reddy; Kayithi, Adarsh; Chintakrindi, Sri Hari; Molakalapalli, Vineeth Kumar

doi:10.1109/piers53385.2021.9694891

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2024

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Cited by 2 publications

References 12 publications

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A Double Square Monopole Antenna With Dual Band (S band/X band) For Radar And Satellite Communication

Sabbar,

Setti

2024

2024 International Conference on Global Aeronautical Engineering and Satellite Technology (GAST)

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A Double Square Monopole Antenna With Dual Band (S band/X band) For Radar And Satellite Communication

Sabbar,

Setti

2024

2024 International Conference on Global Aeronautical Engineering and Satellite Technology (GAST)

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Design of Amplitude and Phase Controlled Butler Beamforming Network for X/Ku-Band Airborne Synthetic Aperture Radar Applications

Mullapudi,

Kummitha,

Kolusu

et al. 2024

Telecom Rad Eng

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Beamforming networks play an important role in today's communication systems. The Butler matrix network is one of the most useful networks used to feed array antennas and generate multi-beamforming systems. Its complexity increases with an increase in the number of input and output ports. This research work presents simulated results of an unequal amplitude 8 × 8 Butler matrix network, in which the Taylor series synthesis technique was employed to generate unequal amplitudes (-9.626, -9.125, -8.798, -8.636, -8.636, -8.798, -9.125, and -9.626 dB). The design of the Butler matrix beamforming network is based on two frequency bands, i.e., the X-band and Ku-band, with center frequencies of 9.3 and 13.265 GHz, respectively. The design mainly involves 12 hybrid couplers and eight phase shifters that can generate beams in eight different directions (-32.4°, -26.5°, -15.5°, -10.3°, 10.3°, 15.5°, 26.5°, and 32.4°). This design is based on the Taylor series expansion, which has the advantage of sidelobe level reduction of -17 dB. All of the simulations were done using advanced design system software key sight technologies. The simulations results were in line with the theoretical calculations.

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Hybrid-fed Enhanced Gain Circularly Polarized Shared Aperture Antenna Array for X/K-band Airborne Synthetic Aperture Radar Applications

Cited by 2 publications

References 12 publications

A Double Square Monopole Antenna With Dual Band (S band/X band) For Radar And Satellite Communication

A Double Square Monopole Antenna With Dual Band (S band/X band) For Radar And Satellite Communication

Design of Amplitude and Phase Controlled Butler Beamforming Network for X/Ku-Band Airborne Synthetic Aperture Radar Applications

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