Dual polarized multifilar antenna

Details Dual polarized multifilar antenna Dual polarized multifilar antenna

2007-10-19

2010-10-19

Le, HoangAnh T (Department: 2821)

Communications: radio wave antennas

Antennas

Spiral or helical type

Reexamination Certificate

active

07817101

ABSTRACT:
Various embodiments are described of an antenna including a common ground plane, a first set of N approximately resonant elements with a length I2and a second set of M approximately resonant elements with a length I1. The first set of N approximately resonant elements are wound to form a first helix with an initial diameter d2and a height h2.The second set of M approximately resonant elements are wound in the opposite direction to the first set of N approximately resonant elements to form a second helix. The second helix is centrally disposed within the first helix, and d1is less than d2and h1is greater than h2.

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