Antenna systems
An antenna assembly can include a front cover, a back cover, and one or more ground reference portions with one or more feed networks positioned between the front cover and the back cover. The antenna assembly can include a first antenna array and a second antenna array coupled to the one or more ground reference portions. The antenna arrays can be an ultra-wide band directional antenna array for mobile and client based application for the wireless telecommunication marketplace. The first antenna and second antenna arrays can two orthogonal polarizations, each covering 1800 to 4200 MHz, a 2.3:1 bandwidth. The ultra-wide band directional antenna array can have ultra-wide bandwidth and narrow elevation and azimuth beamwidths which can allow for an enhancement in the link budget between the base station and the mobile or client by increasing the signal strength from the basestation and decreasing the received signal strength from interfering sources.
1 . An ultra-wide band directional antenna array, comprising:
a base portion comprising:
a top surface; and
a bottom surface, the bottom surface comprising a conductive material;
a first feeding network formed on the top surface of the base portion;
a second feeding network formed on the top surface of the base portion;
a plurality of antennas disposed on the top surface of the base portion, each antenna of the plurality of antennas electrically coupled to the first feeding network and the second feeding network;
a second base portion positioned beside the base portion, the second base portion comprising:
a top surface; and
a bottom surface, the bottom surface comprising a conductive material;
a third feeding network formed on the top surface of the second base portion;
a fourth feeding network formed on the top surface of the second base portion; and
a plurality of second antennas disposed on the top surface of the second base portion, each second antenna of the plurality of second antennas electrically coupled to the third feeding network and the fourth feeding network.
2 . The ultra-wide band directional antenna array of claim 1 , wherein each antenna of the plurality of antennas comprises four dipole arm portions and four balun portions.
3 . The ultra-wide band directional antenna array of claim 2 , wherein the four dipole arm portions comprise a first dipole arm, a second dipole arm, a third dipole arm, and a fourth dipole arm, wherein the first dipole arm and the second dipole arm are directly coupled, and wherein the third dipole arm and the fourth dipole arm are directly coupled.
4 . The ultra-wide band directional antenna array of claim 1 , wherein each antenna of the plurality of antennas comprises two interlocking slot portions.
5 . The ultra-wide band directional antenna array of claim 1 , wherein the base portion further comprises a plurality of top side grounding portions, wherein each antenna of the plurality of antennas is coupled to two top side grounding portions of the plurality of top side grounding portions.
6 . The ultra-wide band directional antenna array of claim 1 , wherein the base portion further comprises a plurality of tune tap portions, where each antenna of the plurality of antennas is coupled to two tune tap portions of the plurality of tune tap portions.
7 . The ultra-wide band directional antenna array of claim 1 , wherein the plurality of antennas comprises a square number of antennas arranged in a symmetrical grid on the base portion.
8 . The ultra-wide band directional antenna array of claim 1 , wherein each second antenna of the plurality of second antennas comprises four second dipole arm portions, and wherein each second antenna of the plurality of second antennas comprises four second balun portions.
9 . The ultra-wide band directional antenna array of claim 1 , wherein each second antenna of the plurality of second antennas comprises two second interlocking slot portions.
10 . The ultra-wide band directional antenna array of claim 1 , wherein the second base portion further comprises a plurality of second top side grounding portions, and wherein each second antenna of the plurality of second antennas is coupled to two second top side grounding portions of the plurality of second top side grounding portions.
11 . The ultra-wide band directional antenna array of claim 1 , wherein the second base portion further comprises a plurality of second tune tap portions, where each second antenna of the plurality of second antennas is coupled to two second tune tap portions of the plurality of second tune tap portions.
12 . The ultra-wide band directional antenna array of claim 1 , wherein the plurality of second antennas comprises a square number of second antennas arranged in a second symmetrical grid on the second base portion.
13 . The ultra-wide band directional antenna array of claim 1 , wherein the ultra-wide band directional antenna array includes a same number of antennas and second antennas.
14 . The ultra-wide band directional antenna array of claim 1 , wherein the plurality of antennas have a first polarization configured to cover a frequency range of 1800 MHz to 4200 MHz, wherein the plurality of second antennas have a second polarization configured to cover a frequency range of 1800 MHz to 4200 MHz, and wherein the first polarization is orthogonal to the second polarization.
15 . The ultra-wide band directional antenna array of claim 14 , wherein the first polarization and the second polarization are configured to cover a 2.3:1 bandwidth.
16 . The ultra-wide band directional antenna array of claim 14 , wherein the ultra-wide band directional antenna array is configured to receive and transmit radio signals across multiple LTE frequency bands.
17 . The ultra-wide band directional antenna array of claim 1 , wherein the first feeding network comprises a plurality of first microstrip transmission lines and the second feeding network comprises a plurality of second microstrip transmission lines.
18 . The ultra-wide band directional antenna array of claim 17 , wherein each first microstrip transmission line of the plurality of first microstrip transmission lines is electrically coupled to a first feed portion of one antenna of the plurality of antennas, wherein each second microstrip transmission line of the plurality of second microstrip transmission lines is electrically coupled to a second feed portion of one antenna of the plurality of antennas.
19 . The ultra-wide band directional antenna array of claim 17 , wherein the first feeding network is electrically coupled to a first radiofrequency port and the second feeding network is electrically coupled to a second radiofrequency port, wherein the first radiofrequency port is configured to transmit a first radiofrequency signal with a first polarization and the second radiofrequency port is configured to transmit a second radiofrequency signal with a second polarization.