Systems and methods for wireless telecommunications
First Claim
1. An antenna, comprising:
- an antenna cup having a driven element mounted therein such that a longitudinal axis of the driven element is arranged to be substantially centered within the antenna cup, the antenna cup having a side wall that encircles the driven element and is at least as high as a top end of an upper portion of the driven element, the side wall of the antenna cup having a plurality of slots formed therein, at least some of the slots being arranged to be parallel to the longitudinal axis of the driven element and at least some other of the slots being arranged to be perpendicular to the longitudinal axis of the driven element.
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Accused Products
Abstract
An antenna having an antenna cup and a helical element mounted in the antenna cup. The antenna cup has a side wall extending from a base thereof towards an open end thereof, the side wall having a plurality of slots formed therein, a first set of the slots being arranged parallel to a longitudinal axis of the helical element and a second set of the slots being arranged perpendicular to the longitudinal axis of the helical element, the first set of slots being arranged to surround an upper portion of the helical element and the second set of slots being arranged to surround a lower portion of the helical element. The slots present a high impedance wall to surface currents and thereby significantly reduce side lobe radiation. Such an antenna is particular useful in antenna co-location applications, such as cellular telephone and Wi-Fi applications.
31 Citations
24 Claims
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1. An antenna, comprising:
an antenna cup having a driven element mounted therein such that a longitudinal axis of the driven element is arranged to be substantially centered within the antenna cup, the antenna cup having a side wall that encircles the driven element and is at least as high as a top end of an upper portion of the driven element, the side wall of the antenna cup having a plurality of slots formed therein, at least some of the slots being arranged to be parallel to the longitudinal axis of the driven element and at least some other of the slots being arranged to be perpendicular to the longitudinal axis of the driven element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An antenna, comprising:
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an antenna cup; and
a helical element mounted in the antenna cup, wherein the antenna cup comprises a side wall extending from a base thereof towards an open end thereof, the side wall having a plurality of slots formed therein, a first set of the slots being arranged parallel to a longitudinal axis of the helical element and a second set of the slots being arranged perpendicular to the longitudinal axis of the helical element, the first set of slots being arranged to surround an upper portion of the helical element and the second set of slots being arranged to surround a lower portion of the helical element. - View Dependent Claims (19, 20, 21, 22, 23)
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24. An antenna, comprising:
an antenna cup and a driven element mounted inside the antenna cup, the antenna cup having a first set of slots in an upper portion of a sidewall thereof and a second set of slots in a lower portion of the sidewall;
the first set of slots extending substantially parallel to an exterior annular surface of the sidewall and the second set of slots extending perpendicularly to the first set of slots, wherein the first and second set of slots have depths corresponding to a multiple of a quarter wavelength of a frequency for which the antenna is intended to be used.
Specification