Coverage antenna apparatus with selectable horizontal and vertical polarization elements
View Patent ↗An antenna apparatus comprises selectable antenna elements including a plurality of dipoles and/or a plurality of slot antennas (“slot”). Each dipole and/or each slot provides gain with respect to isotropic. The dipoles may generate vertically polarized radiation and the slots may generate horizontally polarized radiation. Each antenna element may have one or more loading structures configured to decrease the footprint (i.e., the physical dimension) of the antenna element and minimize the size of the antenna apparatus.
1. A system, comprising:
a communication device configured to generate or receive a radio frequency (RF) signal;
an antenna apparatus configured to radiate or receive the RF signal, the antenna apparatus including a first planar element configured to radiate or receive the RF signal in a horizontal polarization and a second planar element configured to radiate or receive the RF signal in a vertical polarization; and
an antenna element selector configured to couple the RF signal to the first planar element or the second planar element, wherein the antenna element selector comprises a PIN diode network configured to couple the RF signal to the first planar element or the second planar element.
2. The system of claim 1 , wherein the antenna apparatus is further configured to radiate or receive the RF signal in a diagonal polarization if the first planar element and the second planar element are coupled to the RF signal.
3. The system of claim 1 , wherein the antenna apparatus is further configured to radiate or receive the RF signal in a substantially omnidirectional radiation pattern.
4. The system of claim 1 , wherein the antenna apparatus is further configured to concentrate the radiation pattern of the first planar element.
5. The system of claim 1 , wherein the first planar element comprises one or more loading elements configured to decrease a footprint of the first planar element.
6. The system of claim 1 , wherein the first planar element comprises a slot antenna.
7. The system of claim 1 , wherein the first planar element comprises a slot antenna and the second planar element comprises a dipole.
8. The system of claim 1 , wherein the second planar element comprises a dipole further comprising one or more loading structures configured to decrease a footprint of the dipole and produce a directional radiation pattern with polarization substantially in the plane of the second planar element.
9. The system of claim 1 wherein the second planar antenna element comprises a dipole including a reflector, the reflector configured to broaden the frequency response of the dipole.
10. An antenna apparatus, comprising:
a first substrate including a first planar element configured to radiate or receive a radio frequency (RF) signal in a horizontal polarization;
a second planar element on the first substrate, the second planar element configured to radiate or receive the RF signal in a vertical polarization; and
an antenna element selector configured to communicate the RF signal with a communication device the antenna element selector further configured to couple the RF signal to first planar element or the second planar element.
11. The antenna apparatus of claim 10 , wherein the first planar element is coupled to the second planar element.
12. The antenna apparatus of claim 10 , wherein the first planar element and the second planar element comprise a circuit board.
13. The antenna apparatus of claim 10 , wherein the first substrate comprises a circuit board, further comprising a second substrate including a third planar element coupled substantially perpendicularly to the circuit board.
14. The antenna apparatus of claim 13 , wherein the second substrate is coupled to the circuit board by solder.
15. A method of manufacturing an antenna apparatus, comprising:
forming a first antenna element and a second antenna element from a printed circuit board substrate;
positioning the printed circuit board substrate into a first portion including the first antenna element and a second portion including the second antenna element; and
coupling the first portion to the second portion to form a non-planar antenna apparatus, wherein coupling the first portion to the second portion comprises soldering the first portion to the second portion.
16. A system, comprising:
a housing;
a communication device; and
an antenna apparatus integral with the housing, the antenna apparatus including one or more slot antennas, wherein one or more of the slot antennas comprises loading elements configured to decrease a footprint of the slot antenna.
17. The system of claim 16 , wherein one or more of the slot antennas comprises an aperture formed in the housing.