Multifilar helix antennas
First Claim
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1. A multifilar helix antenna comprising, a plurality of helical antenna filaments spaced apart from each other at regular intervals about a longitudinal axis of the antenna, each said helical antenna filament having a meander along its length.
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Abstract
A multifilar helix antenna comprises a plurality of helical antenna filaments each having a square waveform pattern along its length, giving reduced axial length. Also described is a multifilar helix antenna comprising a plurality of helical antenna filaments each incorporating a microstrip spur-line band stop filter for enabling multi-band operation.
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Citations
22 Claims
- 1. A multifilar helix antenna comprising, a plurality of helical antenna filaments spaced apart from each other at regular intervals about a longitudinal axis of the antenna, each said helical antenna filament having a meander along its length.
- 15. A multifilar helix antenna comprising a plurality of helical antenna filaments spaced apart from each other at regular intervals about a longitudinal axis of the antenna and wherein each said helical antenna filament incorporates a band stop filter for enabling multi-band operation.
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22-23. -23. (canceled)
Specification