Planar antenna

Details Planar antenna Planar antenna

1988-09-21

1989-08-15

Hille, Rolf

Communications: radio wave antennas

Antennas

Microstrip

343846, H01Q 138

Patent

active

048579386

ABSTRACT:
A planar antenna is formed by providing a radiation circuit with a plurality of pairs of radiation elements respectively formed by a slot made in a conductive layer and having a patch element disposed in the slot, the radiation elements in each pair being in mutually positional relationship rotated by 90 degrees and different dimensional relationship, and electromagnetically coupling the respective radiation elements through power supply terminals with a power-supply circuit mutually with a phase difference of 90 degrees in each pair for a power supply between the both circuits, whereby the antenna is expanded in service band and increased in the cross polarization characteristics.

REFERENCES:
patent: 4486758 (1984-12-01), deKonde
patent: 4590478 (1986-05-01), Powers et al.
Shone, "Horizontally-polarised pole aerial for medium-power VHF transmitting stations", Rev. HF(Belgium), vol. 8, No. 1 (1970).

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