04857939 is referenced by 93 patents and cites 7 patents.

A mobile communications antenna assembly for use over a selected band of frequencies in the VHF an UHF ranges, has, a radiating element with first, second and third, collinear radiating sections. The first and second sections each have an electrical length substantially equal to five-eights wavelength over the selected band, while the third section has an electrical length substantially equal to one-quarter wavelength. Phase inductor elements connect the sections for maintaining a predetermined phase relationship between electrical signals radiating from the sections. The third section further has a radiating surface area that is substantially greater than the radiating surface areas of the first and second sections. The base end of the third section is mounted to be elevated above the surface. The transmission line is connected to impedance matching means at a point where impedance of the two is substantially equal.

Title
Mobile communications antenna
Application Number
7/202123
Publication Number
4857939
Application Date
June 3, 1988
Publication Date
August 15, 1989
Inventor
Tetsuo Shimazaki
Tokyo
JP
Agent
Matthew F Jodziewicz
Marvin H Kleinberg
Assignee
Alliance Research Corporation
CA, US
IPC
H01Q 1/32
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