MOBILE WIDEBAND ANTENNAS
First Claim
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1. An antenna assembly for installation to a vehicle body wall operable as an electrically large ground plane for the antenna assembly after installation thereto, the antenna assembly comprising a stamped metal monopole antenna mast, the antenna mast including:
- a first conductor tuned to at least one electrical resonant frequency for operating within a bandwidth ranging from about 800 MHz to about 1000 MHz;
a second conductor tuned to at least one electrical resonant frequency for operating within a bandwidth ranging from about 1650 MHz to about 2700 MHz;
an open slot extending at least partially between the first and second conductors to provide impedance matching;
when electrically coupled to an electrically large ground plane, the antenna mast having a voltage standing wave ratio (VSWR) of about 2;
1 or less at frequencies within a bandwidth ranging from about 800 MHz to about 1000 MHz and at frequencies within a bandwidth ranging from about 1650 MHz to about 2700 MHz.
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Accused Products
Abstract
In various exemplary embodiments, a wideband antenna assembly includes a stamped monopole antenna mast having two or more conductors combined to a single feed. The conductors are combined at a predetermined height above the point of connection with the single feed. The conductors further have a predetermined spacing between the conductors.
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Citations
29 Claims
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1. An antenna assembly for installation to a vehicle body wall operable as an electrically large ground plane for the antenna assembly after installation thereto, the antenna assembly comprising a stamped metal monopole antenna mast, the antenna mast including:
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a first conductor tuned to at least one electrical resonant frequency for operating within a bandwidth ranging from about 800 MHz to about 1000 MHz; a second conductor tuned to at least one electrical resonant frequency for operating within a bandwidth ranging from about 1650 MHz to about 2700 MHz; an open slot extending at least partially between the first and second conductors to provide impedance matching; when electrically coupled to an electrically large ground plane, the antenna mast having a voltage standing wave ratio (VSWR) of about 2;
1 or less at frequencies within a bandwidth ranging from about 800 MHz to about 1000 MHz and at frequencies within a bandwidth ranging from about 1650 MHz to about 2700 MHz. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A stamped metal monopole antenna mast for an antenna assembly for installation to a vehicle body wall operable as an electrically large ground plane for the antenna assembly after installation thereto, the stamped metal monopole antenna mast comprising:
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a first conductor tuned for receiving electrical resonant frequencies within a first frequency bandwidth; a second conductor tuned for receiving electrical resonant frequencies within a second frequency bandwidth different than the first frequency bandwidth; a base portion from which the first and second conductors extend generally away; and an open slot extending from the base portion generally between the first and second conductors, the open slot providing impedance matching for the antenna assembly. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A stamped metal monopole antenna mast for an antenna assembly for installation to a vehicle body wall operable as an electrically large ground plane for the antenna assembly after installation thereto, the stamped metal monopole antenna mast comprising:
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a first conductor tuned to at least one electrical resonant frequency for operating within a bandwidth ranging from about 800 MHz to about 1000 MHz; a second conductor tuned to at least one electrical resonant frequency for operating within a bandwidth of about 1650 MHz to about 2700 MHz; an open slot extending at least partially between the first and second conductors to provide impedance matching; the antenna mast configured to have an average vertical gain of about negative five dBi or higher at an elevation angle of about zero degrees at frequencies within the bandwidth ranging from about 800 MHz to about 1000 MHz and at frequencies within the bandwidth ranging from about 1650 MHz to about 2700 MHz. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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- 28. An antenna assembly for installation to a vehicle body wall operable as an electrically large ground plane for the antenna assembly after installation thereto, the antenna assembly comprising a monopole antenna mast stamped from a piece of sheet metal and tuned for operating at frequencies within a bandwidth ranging from about 800 MHz to about 1000 MHz and at frequencies within a bandwidth ranging from about 1650 MHz to about 2700 MHz.
Specification