Self‐phasing of quadrifilar helix antenna by relative axial displacement of bifilars | Zendy

Masoud Qureshi Adil | Zendy; Amin Muhammad | Zendy; Ali Shah Waqar | Zendy

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Self‐phasing of quadrifilar helix antenna by relative axial displacement of bifilars

Author(s) -

Masoud Qureshi Adil,

Amin Muhammad,

Ali Shah Waqar

Publication year - 2015

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.28867

Subject(s) - helical antenna , phaser , optics , microwave , axial ratio , helix (gastropod) , physics , bandwidth (computing) , circular polarization , antenna (radio) , engineering , electrical engineering , coaxial antenna , telecommunications , radiation pattern , geology , microstrip , paleontology , snail

Self‐phasing can be achieved in a quadrifilar helix antenna (QHA) by displacing one of the bifilars along the axis of the helix, yielding a circularly polarized cardioid shaped pattern. Impedance bandwidth of 10% (2105–2345 MHz) has been achieved with Front to back ratio greater than 10 dB. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:430–432, 2015

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