Multiband active-passive base station antenna
View Patent ↗Generally described, the present disclosure relates to antennas with an active component and a passive component, generally referred to as an active-passive antenna. More specifically, aspects of the present application include a combination of an active antenna element configured to process communications in accordance with a first frequency bandwidth and a passive antenna element configured to process communication in accordance with a second frequency bandwidth. Still further, the present disclosure includes the integration of the active and passive antenna components as well as the utilization of components of traditional active array antennas to allow the incorporation of the active-passive antenna in the same form factor previously utilized for solely active array antennas.
1. An active-passive antenna comprising:
a plurality of radiating components; and
a plurality of triplexers coupled to the plurality of radiating elements, wherein each of the plurality of triplexers defines three distinct branches of the active-passive antenna corresponding to:
a first branch associated with first active antenna components;
a second branch associated with passive antenna components; and
a third branch associated with second active antenna components.
2. The active-passive antenna of claim 1 , wherein at least one of the plurality of triplexers is a double triplexer associated with pairs of radiating elements from the plurality of radiating elements.
3. The active-passive antenna of claim 1 , wherein at least one of the plurality of triplexers covers two-slant polarization.
4. The active-passive antenna of claim 1 , wherein the first active antenna components include, for each of the plurality of triplexers, a distributed low noise amplifier, an electronic phase shifter, an electronic attenuator, a combiner/divider, a preamplifier and a radio transmitter.
5. The active-passive antenna of claim 1 , wherein the first active antenna components correspond to an active uplink communication channel.
6. The active-passive antenna of claim 5 , wherein the active uplink communication channel corresponds to a range of frequencies between 1710 MHz to 1755 MHz.
7. The active-passive antenna of claim 1 , wherein the passive antenna components include an antenna feed network and a combiner/divider.
8. The active-passive antenna of claim 7 , wherein the antenna feed network corresponds to a plurality of passive phase shifters.
9. The active-passive antenna of claim 7 , wherein the passive antenna components correspond to a passive uplink communication channel.
10. The active-passive antenna of claim 9 , wherein the passive active uplink communication channel corresponds to a range of frequencies between 1850 MHz to 1995 MHz.
11. The active-passive antenna of claim 1 , wherein the second active antenna components include, for each of the plurality of triplexers, a radio transmitter, a preamplifier, a combiner/divider, an electronic attenuator, an electronic phase shifter, and a distributed low noise amplifier.
12. The active-passive antenna of claim 1 , wherein the second active antenna components correspond to an active downlink communication channel.
13. The active-passive antenna of claim 12 , wherein the active uplink communication channel corresponds to a range of frequencies between 2110 MHz to 2155 MHz.
14. An active-passive antenna comprising:
a plurality of radiating components;
a first set of active components defined an active uplink channel for the plurality of radiating components;
a set of passive components defined a passive uplink channel for the plurality of radiating components; and
a plurality of triplexers defining branches to the first set of active components and the set of passive components.
15. The active-passive antenna of claim 14 further comprising a second set of active components defined an active downlink channel for the plurality of radiating components.
16. The active-passive antenna of claim 15 , wherein the second set of active components include a radio transmitter, a preamplifier, a combiner/divider, a set of electronic attenuators, a set of electronic phase shifters, and a set of distributed low noise amplifiers.
17. The active-passive antenna of claim 14 , wherein the first active components include a set of distributed low noise amplifiers, electronic phase shifters, electronic attenuators, a combiner/divider, a preamplifier and a radio transmitter.
18. The active-passive antenna of claim 14 , wherein the set of passive components include an antenna feed network and a combiner/divider.
19. An active-passive antenna comprising:
a plurality of radiating components;
means for forming an active uplink channel for the plurality of radiating components wherein the means for forming an active uplink channel include a plurality of triplexers defining branches between the active uplink channel and the plurality of radiating components; and
means for forming a passive uplink channel for the plurality of radiating components wherein the means for forming a passive uplink channel include a plurality of triplexers defining branches between the passive uplink channel and the plurality of radiating components.
20. The active-passive antenna of claim 19 further comprising means for forming an active downlink channel for the plurality of radiating components.