Antenna array structure with differing antennas
View Patent ↗An antenna array structure includes a plurality of antennas, wherein a first antenna has a first geometric shape, provides a first radiation pattern, and has a first frequency bandwidth. A second antenna has a second geometric shape to provide a second radiation pattern and has a second frequency bandwidth. The first and second frequency bandwidths at least partially overlap to include channels of interest. An antenna processing circuit sends one or more transmit signals to one or more of the antennas for transmission via one or more of the channels of interest and receives one or more receive signals from the one or more of the antennas or from another one or more of the antennas via the one or more of the channels of interest or from another one or more of the channels of interest.
1. An antenna array structure comprising:
a plurality of antennas, wherein:
a first antenna of the plurality of antennas having a first geometric shape to provide a first radiation pattern and having a first frequency bandwidth;
a second antenna of the plurality of antennas having a second geometric shape to provide a second radiation pattern and having a second frequency bandwidth, wherein the first and second frequency bandwidths at least partially overlap and wherein one or more channels of interest are within the at least partially overlapping first and second frequency bandwidths;
a third antenna of the plurality of antennas having a third geometric shape to provide a third radiation pattern and having a third frequency bandwidth; and
a fourth antenna having a fourth geometric shape to provide a fourth radiation pattern and having a fourth frequency bandwidth, wherein the third and fourth frequency bandwidths at least partially overlap and wherein one or more of the channels of interest are within the at least partially overlapping third and fourth frequency bandwidths; and
an antenna processing circuit configured to:
send one or more transmit signals to one or more of the plurality of antennas for transmission via one or more of the channels of interest; and
receive one or more receive signals from the one or more of the plurality of antennas or from another one or more of the plurality of antennas via the one or more of the channels of interest or from another one or more of the channels of interest.
2. The antenna array structure of claim 1 , wherein each of the first and second geometric shapes comprising one of:
line;
polygon;
circle;
ellipse;
hyperbola;
parabola;
spiral; or
eccentric spiral.
3. The antenna array structure of claim 1 further comprising:
one or more of the channels of interest are within a frequency band; and
resonant frequency of the first and second antennas is proximal to a center frequency of the frequency band.
4. The antenna array structure of claim 1 , wherein the antenna processing circuit further comprising:
a first antenna tuning circuit configured to adjust at least one of:
shape of the first radiation pattern;
direction of the first radiation pattern; or
a second antenna tuning circuit configured to adjust at least one of:
shape of the second radiation pattern; or
direction of the second radiation pattern.
5. The antenna array structure of claim 1 , wherein each of the third and fourth antennas comprising one of:
a different shape to the first or second antennas; or
a similar shape to the first or second antennas.
6. The antenna array structure of claim 1 , wherein the antenna processing circuit further comprising at least one of:
coupling for multiple input multiple output (MIMO) operation;
coupling for diversity antenna operation; or
coupling for diversity antenna MIMO operation.
7. The antenna array structure of claim 1 , wherein the first and second radiation patterns comprising one of:
linear polarization and a direction; or
circular polarization and the direction.
8. An antenna array structure comprising:
a first poly spiral antenna having a first number of spirals to provide a first radiation pattern and having a first frequency bandwidth;
a second poly spiral antenna having a second number of spirals to provide a second radiation pattern and having a second frequency bandwidth, wherein the first and second frequency bandwidths at least partially overlap and wherein channels of interest are within the at least partially overlapping first and second frequency bandwidths;
a third poly spiral antenna having a third number of spirals to provide a third radiation pattern and having a third frequency bandwidth; and
an antenna processing circuit configured to:
send one or more transmit signals to one or more of the first and second poly spiral antennas for transmission via one or more of the channels of interest; and
receive one or more receive signals from the one or more of the first, second and third poly spiral antennas.
9. The antenna array structure of claim 8 further comprising one of:
the first number of spirals having a similar spiral shape, but a different number of turns per spiral, as the second number of spirals; and
the first number of spirals having a different spiral shape than a spiral shape of the second number of spirals.
10. The antenna array structure of claim 8 further comprising:
a fourth poly spiral antenna having a fourth number of spirals to provide a fourth radiation pattern and having a fourth frequency bandwidth, wherein the third and fourth frequency bandwidths at least partially overlap and wherein additional channels of interest are within the at least partially overlapping third and fourth frequency bandwidths.
11. The antenna array structure of claim 8 , wherein the antenna processing circuit further comprising:
a first antenna tuning circuit configured to excite different patterns of spirals to adjust at least one of:
shape of the first radiation pattern; or
direction of the first radiation pattern; and
a second antenna tuning circuit configured to excite different patterns of spirals to adjust at least one of:
shape of the second radiation pattern; or
direction of the second radiation pattern.
12. The antenna array structure of claim 11 , wherein the antenna processing circuit further comprising:
a third antenna tuning circuit configured to excite different patterns of spirals to adjust at least one of:
shape of the third radiation pattern; or
direction of the third radiation pattern.
13. The antenna array structure of claim 8 , wherein the antenna processing circuit further comprising at least one of:
coupling for multiple input multiple output (MIMO) operation;
coupling for diversity antenna operation; or
coupling for diversity antenna MIMO operation.
14. The antenna array structure of claim 8 further comprising:
the channels of interest are within a frequency band; and
resonant frequency of the first poly spiral antenna and the second poly spiral antenna is proximal to a center frequency of the frequency band.
15. A radio front-end circuit comprising:
a plurality of power amplifiers;
a plurality of low noise amplifiers;
an antenna array structure including:
a plurality of antennas, wherein:
a first antenna of the plurality of antennas having a first geometric shape to provide a first radiation pattern and having a first frequency bandwidth;
a second antenna of the plurality of antennas having a second geometric shape to provide a second radiation pattern and having a second frequency bandwidth, wherein the first and second frequency bandwidths at least partially overlap and wherein one or more channels of interest are within the at least partially overlapping first and second frequency bandwidths;
a third antenna of the plurality of antennas having a third geometric shape to provide a third radiation pattern and having a third frequency bandwidth;
a fourth antenna having a fourth geometric shape to provide a fourth radiation pattern and having a fourth frequency bandwidth, wherein the third and fourth frequency bandwidths at least partially overlap and wherein one or more of the channels of interest are within the at least partially overlapping third and fourth frequency bandwidths; and
an antenna processing circuit configured to:
receive one or more outbound signals from one or more of the plurality of power amplifiers;
send the one or more outbound signals to one or more of the plurality of antennas for transmission via one or more of the channels of interest;
receive one or more inbound signals from the one or more of the plurality of antennas or from another one or more of the plurality of antennas; and
send the one or more inbound signals to one or more of the plurality of low noise amplifiers.
16. The radio front-end circuit of claim 15 , wherein the first and second geometric shapes comprising different ones of:
line;
polygon;
circle;
ellipse;
hyperbola;
parabola;
spiral; or
eccentric spiral.
17. The radio front-end circuit of claim 15 , wherein the antenna processing circuit further comprising:
a first antenna tuning circuit configured to adjust at least one of:
shape of the first radiation pattern; or
direction of the first radiation pattern; and
a second antenna tuning circuit configured to adjust at least one of:
shape of the second radiation pattern; or
direction of the second radiation pattern.
18. The radio front-end circuit of claim 15 , wherein the third and fourth antennas comprising different ones of:
a different shape to the first or second antennas; or
a similar shape to the first or second antennas.
19. The radio front-end circuit of claim 15 , wherein the antenna processing circuit comprising at least one of:
coupling for multiple input multiple output (MIMO) operation;
coupling for diversity antenna operation; or
coupling for diversity antenna MIMO operation.
20. The radio front-end circuit of claim 15 , wherein each of the first and second radiation patterns comprising one of:
linear polarization and a direction; or
circular polarization and the direction.