Tri-pole antenna element and antenna array
First Claim
1. A dual polarized base station antenna, comprising:
- a reflector having a longitudinal axis;
an array of tri-pole elements disposed on the reflector, each tri-pole element having arms consisting of;
i. a first side arm;
ii. a second side arm; and
iii. a central arm, approximately perpendicular to the first and second side arms;
said first side arm, said second side arm, and said central arm electrically connected to each other;
wherein one of the first side arm and the center arm is parallel to the longitudinal axis; and
a feed network having a first microstrip line coupled to the first arms of the tri-pole elements and a second microstrip line coupled to the second arms of the tri-pole elements, said first and second microstrip lines having a common ground conductor coupled to the central arm.
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Accused Products
Abstract
A dual polarized base station antenna is provided, including a reflector having a longitudinal axis and an array of tri-pole elements disposed on the reflector. Each tri-pole element has a first side arm and a second side arm. The tri-pole element also includes a center arm which is approximately perpendicular to the first and second side arms. The tri-pole elements are oriented such that either the side arms or the center arm are parallel to the longitudinal axis of the reflector. The antenna further includes a feed network having a first signal path coupled to the first arms of the tri-pole elements and a second signal path coupled to the second anus of the tri-pole elements. In this example, the array of tri-pole elements produces a cross-polarized beam at +45 degrees and −45 degrees from the longitudinal axis. Tri-pole arrays may be used in a multiband antenna.
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Citations
20 Claims
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1. A dual polarized base station antenna, comprising:
- a reflector having a longitudinal axis;
an array of tri-pole elements disposed on the reflector, each tri-pole element having arms consisting of;i. a first side arm; ii. a second side arm; and iii. a central arm, approximately perpendicular to the first and second side arms; said first side arm, said second side arm, and said central arm electrically connected to each other;
wherein one of the first side arm and the center arm is parallel to the longitudinal axis; and
a feed network having a first microstrip line coupled to the first arms of the tri-pole elements and a second microstrip line coupled to the second arms of the tri-pole elements, said first and second microstrip lines having a common ground conductor coupled to the central arm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- a reflector having a longitudinal axis;
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13. A dual polarized multiband base station antenna, comprising:
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a. a reflector having a longitudinal axis; b. an array of low band connected tri-pole elements disposed on the reflector with a first operating range, each tri-pole element having arms consisting of; i. a first side arm; ii. a second side arm; and iii. a center arm, approximately perpendicular to the first and second side arms; wherein one of the first side arm and the center arm is parallel to the longitudinal axis such that the array of tri-pole elements has two polarizations, oriented at +45 degrees and −
45 degrees from the longitudinal axis;c. said array of low band connected tri-pole elements with said first operating range having a first signal path coupled to the first arms of the low band connected tri-pole elements and a second signal path coupled to the second arms of the low band connected tri-pole elements, said first signal path and said second signal path having a common ground; d. a first array of dual-polarized high band radiating elements with a second operating range higher than said first operating range; and e. said first array of dual-polarized high band radiating elements with said second operating range coupled to the dual polarized high band radiating elements. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification