Antenna feed elements with constant inverted phase
AssigneeCommScope Technologies LLC
InventorsChangfu Chen, Hangsheng Wen, YueMin Li
Life of this patent
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Abstract
A dipole antenna includes a feed line, first and second microstrip probes, a first signal transmission line coupled to the feed line and to the first microstrip probe, and a second signal transmission line coupled to the feed line and to the second microstrip probe. The first signal transmission line includes a first transmission line including a first signal conductor and a first ground conductor and a second transmission line including a second signal conductor and a second ground conductor. The first signal conductor is electrically coupled to the feed line and to the second ground conductor and the second signal conductor is electrically coupled to the first microstrip probe and the first ground conductor.
Claims13
A crossover transmission line comprising:
- an input port;
- an output port;
- a first transmission line including a first signal conductor and a first ground conductor;
- and
- a second transmission line including a second signal conductor and a second ground conductor,
- wherein the first signal conductor is coupled to the input port and to the second ground conductor and the second signal conductor is coupled to the output port and the first ground conductor,
- wherein the first transmission line comprises a first coaxial cable including a first inner conductor corresponding to the first signal conductor and a first outer conductor corresponding to the first ground conductor,
- wherein the second transmission line comprises a microstrip transmission line including a microstrip conductor corresponding to the second signal conductor and a ground plane corresponding to the second ground conductor,
- wherein the first inner conductor is electrically coupled to the ground plane, and
- wherein the first outer conductor is electrically coupled to the microstrip conductor.
A crossover transmission line comprising:
- a first transmission line including a first signal conductor and a first ground conductor;
- a second transmission line including a second signal conductor and a second ground conductor, wherein the second transmission line comprises a microstrip transmission line including a microstrip conductor corresponding to the second signal conductor and a ground plane corresponding to the second ground conductor;
- and
- a crossover coupler connected between the first and second transmission lines, wherein the crossover coupler is configured to electrically couple the first signal conductor to the ground plane and to electrically couple the microstrip conductor to the first ground conductor.
A crossover transmission line comprising:
- an input port;
- an output port;
- a first microstrip transmission line including a first microstrip conductor coupled to the input port and a first ground plane;
- a second microstrip transmission line comprising a second microstrip conductor coupled to the output port and a second ground plane;
- and
- a crossover coupler connected between the first microstrip transmission line and the second microstrip transmission line,
- wherein the crossover coupler is configured to electrically couple the first microstrip conductor to the second ground plane and to electrically couple the second microstrip conductor to the first ground plane.
Dependencies are inferred from the claim text.