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US 2003/0164800 A1Published application
Multi-band antenna using an electrically short cavity reflector
AssigneeM/A-Com, Inc.
InventorsDavid Frederick Jordan, Thomas S. Laubner
Life of this patent
Estimating the term…
Abstract
A compact, aesthetically pleasing, multi-band antenna for use in conjunction with communication systems used in automotive applications, comprising a radiating element capable of operating in several frequency bands in combination with an electrically short reflector to provide superior gain characteristics while shielding the interior of the automobile from exposure to high levels of radiated signals.
Claims22
A multi-band antenna for use in conjunction with communication systems, comprising:
- a radiating element, said element containing a first slot antenna operating in the PCS frequency band and a second slot antenna operating in the AMPS frequency band;
- a reflector, said reflector coupled to said radiating element;
- and
- at least one transmission line to feed said first and said second slot antennas.
1 more element
An antenna as set forth in claim 17, wherein the length of said antenna is less than 6.75 inches.
Dependencies are inferred from the claim text.