Panel Antenna with Variable Phase Shifter
First Claim
1. A panel antenna comprising:
- an array of radiating elements;
a feed network connecting a signal input to said array of radiating elements; and
a phase shifter assembly located in said feed network and configured to adjust the phasing of signals fed to said array of radiating elements, said phase shifter assembly comprising a moveable conductive component coupled to an input and capacitively coupled to a transmission line segment of the network between radiating elements, the wiper conductive component or transmission line segment having a dielectric coating providing dielectric separation of the transmission line segment and the wiper conductive component.
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Accused Products
Abstract
A panel antenna having a variable phase shifter module with at least one main-PCB having an input trace coupled to a wiper junction. An arcuate trace on the main-PCB extending between a first output trace and a second output trace, the arcuate trace having an arc center proximate the wiper junction. A wiper-PCB having a linking trace thereon; the wiper-PCB rotatably coupled to the main-PCB proximate the wiper junction with the linking trace facing the first main-PCB. Because the linking trace faces the main-PCB, the wiper-PCB may be formed from inexpensive and structurally resilient substrate material. The linking trace coupling the wiper junction with the arcuate trace. Multiple arcuate traces may be linked to further output traces to add additional outputs, each having variable phase shift between them, depending upon the position of the wiper-PCB. Multiple main-PCBs may be stacked upon each other and the wiper-PCBs of each controlled by a common linkage.
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Citations
15 Claims
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1. A panel antenna comprising:
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an array of radiating elements;
a feed network connecting a signal input to said array of radiating elements; and
a phase shifter assembly located in said feed network and configured to adjust the phasing of signals fed to said array of radiating elements, said phase shifter assembly comprising a moveable conductive component coupled to an input and capacitively coupled to a transmission line segment of the network between radiating elements, the wiper conductive component or transmission line segment having a dielectric coating providing dielectric separation of the transmission line segment and the wiper conductive component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A panel antenna comprising:
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an array of radiating elements;
a feed network connecting a signal input to said array of radiating elements; and
a phase shifter assembly located in said feed network and configured to adjust the phasing of signals fed to said array of radiating elements;
the phase shifter having a first main printed circuit board having an input trace coupled to a first wiper junction;
a first arcuate trace extending between a first output trace and a second output trace on the first main printed circuit board, the first arcuate trace having an arc center proximate the first wiper junction; and
a first wiper printed circuit board having a linking trace thereon;
the first wiper printed circuit board rotatably coupled to the first main printed circuit board proximate the first wiper junction with the linking trace facing the first main printed circuit board;
the linking trace coupling the first wiper junction with the first arcuate trace; and
an arcuate edge guide surface formed in the first main printed circuit board having an arc center proximate the first wiper junction; and
a clip coupled to the first wiper printed circuit board to bias the first wiper printed circuit board against the first main printed circuit board about the arcuate edge guide surface. - View Dependent Claims (13, 14, 15)
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Specification