Multi-band low profile antenna with low band differential mode

Details Multi-band low profile antenna with low band differential mode Multi-band low profile antenna with low band differential mode

2011-03-22

2011-03-22

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

C343S7000MS, C343S741000

Reexamination Certificate

active

07911405

ABSTRACT:
An antenna assembly includes a ground plane and an element coupled to the ground plane. The element has a center point, a first element portion extending away from the center point on a first side of the center point for a first distance in a first direction, bending at a first approximately 180 degree bend, extending towards the center point for a second distance in a second direction, bending at a second approximately 180 degree bend, and extending away from the center point for a third distance in the first direction. The element also has a second element portion provided on a second side of the center point opposite the first element portion on the first side of the center point, the second element portion being substantially a mirror image of the first element portion. The element also includes a ground leg located on the first side of the center point a first distance from the center point, extending substantially perpendicular to the first and second element portions, and coupling the element to the ground plane and a feed leg located on the second side of the center point a second distance from the center point, the feed leg extending substantially parallel to the ground leg.

REFERENCES:
patent: 6417816 (2002-07-01), Sadler et al.
patent: 7307591 (2007-12-01), Zheng
patent: 7705791 (2010-04-01), Ollikainen
patent: 2008/0042916 (2008-02-01), Ma

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