Self-phasing of quadrifilar helix antenna by relative axial displacement of bifilars
Artikel i vetenskaplig tidskrift, 2015
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.
self-phasing
circularly polarized
QHA
helix
Författare
Adil Masoud Qureshi
Institute of Space Technology
Muhammad Amin
Institute of Space Technology
Waqar Ali Shah
Student vid Chalmers
Microwave and Optical Technology Letters
0895-2477 (ISSN) 1098-2760 (eISSN)
Vol. 57 2 430-432Ämneskategorier
Atom- och molekylfysik och optik
Elektroteknik och elektronik
DOI
10.1002/mop.28867