A Compact design of antenna feed for 6 M S/X-bands mono-pulse auto-tracking ground station

Lee, Yun-Jui; Huang, Vincent; Yang, Ru-Muh; Hsu, Ti-Hsiang; Chen, Ming‐Hui; Chu, Chin-Hsuan; Chung, Shyh‐Jong

doi:10.1109/apmc.2015.7413176

Cited by 1 publication

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Multiple modes monopulse tracking obtains error angle using a higher‐order‐mode from a mode coupler when antenna beam axis is moving . Conventional multiple modes monopulse tracking uses higher‐order‐mode coupler using TE 21 mode to detect error angle . Receiving a linearly polarized wave, azimuth and elevation error data is extracted from a higher‐order‐mode coupler using orthogonal two TE 21 mode and additional hybrid coupler is needed to synthesize in phase condition.…”

Section: Introductionmentioning

confidence: 99%

“…2,3 Conventional multiple modes monopulse tracking uses higher-order-mode coupler using TE 21 mode to detect error angle. [4][5][6] Receiving a linearly polarized wave, azimuth and elevation error data is extracted from a higher-order-mode coupler using orthogonal two TE 21 mode and additional hybrid coupler is needed to synthesize in phase condition. On the other hand, receiving a circular polarized wave, contrary to a linearly polarized wave, azimuth and elevation error data is detected from a higher-order-mode coupler using a TE 21 mode.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design X‐band monopulse tracking system

Kwon

Park

Kim

et al. 2019

Micro & Optical Tech Letters

View full text Add to dashboard Cite

In this letter, a higher‐order‐mode coupler using waveguide for multimode monopulse satellite tracking and signal processing schemes handling the signal from the higher‐order‐mode coupler are proposed. The proposed higher‐order‐mode coupler uses TM01 mode for compactness and weight reduction, making it suitable for OTM satellite tracking systems. The TM01 mode is extracted from the two H‐plane slots of the circular waveguide and then divided signals are combined through magic‐T structure. Also, the sum and difference radiation patterns of antenna applicable to monopulse satellite tracking are generated. A monopulse tracking data is extracted using the proposed signal processing schemes to the antenna radiation patterns. The influence of Doppler effect and noise is concerned to enhance tracking accuracy and sliding techniques are adopted to deal with an instantaneous tracking system. Designed X‐band higher‐order‐mode coupler of TM01 mode and signal processing schemes are expected to be used for all OTM monopulse satellite tracking systems.

show abstract

Section: Introductionmentioning

confidence: 99%