Antenna module and a wireless device having the same
An antenna module includes a plurality of antenna units, wherein one of the antenna units includes a fixed phase and the other antenna units respectively include a phase adjusted in response to the fixed phase.
1. A wireless device, comprising:
a plurality of antenna modules, wherein each of the antenna modules includes a plurality of antenna units, wherein one of the antenna unit of the antenna module includes a fixed phase and the other antenna units of the antenna module respectively include a phase adjusted in response to the fixed phase,
wherein the antenna unit includes:
a substrate including a signal transmitting path;
a first dielectric layer disposed on the substrate;
an inner layer disposed on the first dielectric layer;
a signal feeding via coupled between a first patch and the signal transmitting path through the inner layer and the first dielectric layer;
a second dielectric layer disposed on the first patch and the inner layer; and
a plurality of vias arranged around a second patch, wherein each of the vias is coupled between a metal frame and the first dielectric layer through the second dielectric layer and the inner layer, respectively; and
wherein the second patch is disposed on the second dielectric layer corresponding to the first patch.
2. The wireless device of claim 1 further including a plurality of phase shifting modules respectively coupled between a phase control module and the antenna units.
3. The wireless device of claim 2 , wherein one of the phase shifting modules includes a fixed phase value, and the other phase shifting modules are configured to respectively shift phase in response to the fixed phase value and a phase shift control signal, generated by a phase control module.
4. The wireless device of claim 2 further including a plurality of signal amplifying modules respectively coupled between the antenna units and the phase shifting modules, wherein the signal amplifying module is configured to amplify a plurality of signals transceived by the antenna units.
5. The wireless device of claim 2 further including a plurality of attenuators respectively coupled to the phase shifting modules.
6. The wireless device of claim 5 , wherein the attenuator is configured to compensate path loss errors.
7. The wireless device of claim 5 , wherein the attenuator is configured to compensate taper tuning.
8. The wireless device of claim 1 , wherein the fixed phase value includes 360 degree.
9. The wireless device of claim 1 , wherein a phase value of the other antenna units includes 0 to 360 degree.
10. The wireless device of claim 1 , wherein a phase value of the other antenna units includes 0 to −360 degree.
11. The wireless device of claim 1 , wherein the antenna module includes a plurality of side-face radiation antennas.
12. The wireless device of claim 1 , wherein the antenna unit further includes a dual patch/substrate integrated waveguide (SIW) based antenna.
13. The wireless device of claim 1 , wherein the signal transmitting path includes a coaxial cable.
14. The wireless device of claim 1 , wherein the inner layer includes a fabric-type material.
15. The wireless device of claim 1 , wherein the inner layer includes a pre-preg material.
16. The wireless device of claim 1 , wherein the vias are disposed with predetermined spacing.
17. The wireless device of claim 16 , wherein the vias are spaced equally.
18. The wireless device of claim 1 , wherein dimensions of the first patch are different from dimensions of the second patch.
19. The wireless device of claim 13 , wherein an impedance of the coaxial cable includes 50Ω(Ohm).
20. The wireless device of claim 1 , wherein the antenna unit further includes an mm wave antenna.
21. The wireless device of claim 1 , wherein a center point of the first patch is misaligned to a center point of the second patch.
22. The wireless device of claim 1 further including a selecting module coupled to the antenna modules, wherein the selecting module is configured to select and active, in response to a selecting signal generated by a control module coupled to the selecting module, at least one antenna module to transceive a plurality of wireless signals.
23. The wireless device of claim 22 , wherein the selecting signal is generated in response to instantaneous movements of the wireless device.
24. The wireless device of claim 22 , wherein the wireless device includes a user equipment.
25. The wireless device of claim 22 , wherein the selecting module includes a switch.
26. The wireless device of claim 1 further including an antenna array.