Differential grid array antenna to radiate pencil beam at 24 GHz for radar and sensor applications | Zendy

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Differential grid array antenna to radiate pencil beam at 24 GHz for radar and sensor applications

Author(s) -

Zhang Lin,

Zhang Yue Ping

Publication year - 2014

Publication title -

iet microwaves, antennas and propagation

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.555

H-Index - 69

eISSN - 1751-8733

pISSN - 1751-8725

DOI - 10.1049/iet-map.2013.0388

Subject(s) - antenna array , pencil (optics) , radar , optics , grid , antenna (radio) , physics , beam waveguide antenna , dipole antenna , electrical engineering , electronic engineering , computer science , periscope antenna , engineering , telecommunications , geology , geodesy

A new differential grid array antenna that radiates a pencil beam is reported. The difference between the half‐power beam widths of the E‐ and H ‐planes is used to assess the pencil beam quality. Also, a novel differential feeding scheme that eases the testing and improves the pencil beam quality, impedance matching and gain bandwidth is proposed. The prototype was designed and fabricated on RT/duroid 5880 substrate with the size of 40 × 50 × 0.787 mm 3 and the number of 16 radiating elements. Measured results show that the differential grid array antenna achieved 4.37% impedance bandwidth and 17 dBi gain at 24.25 GHz.

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