Radio system for long-range high-speed wireless communication
Devices and systems, and methods of using them, for point-to-point transmission/communication of high bandwidth signals. Radio devices and systems may include a pair of reflectors (e.g., parabolic reflectors) that are adjacent to each other and configured so that one of the reflectors is dedicated for sending/transmitting information, and the adjacent reflector is dedicated for receiving information. Both reflectors may be in a fixed configuration relative to each other so that they are aligned to send/receive in parallel. In many variations the two reflectors are formed of a single housing, so that the parallel alignment is fixed, and reflectors cannot lose alignment. The device/systems may be configured to allow switching between duplexing modes. These devices/systems may be configured as wide bandwidth zero intermediate frequency radios including alignment modules for automatic alignment of in-phase and quadrature components of transmitted signals.
1. A radio device for point-to-point transmission of high bandwidth signals, the device comprising:
a housing forming a pair of reflectors including a first reflector and a second reflector, wherein the pair of reflectors are situated on a front side of the housing and aimed directionally parallel with each other, wherein each reflector comprises an parabolic reflector having a parabolic reflecting surface and the parabolic reflecting surfaces have different diameters; and
a printed circuit board (PCB) comprising at least a transmitter and a receiver, wherein the transmitter couples with the first reflector to form a dedicated transmitting antenna configured to transmit but not to receive and the receiver couples with the second reflector to form a dedicated receiving antenna configured to receive but not to transmit, wherein a reflector with a larger diameter is coupled to the receiver.
2. The device of claim 1 , wherein the transmitter and the receiver can be operated either a full-duplex mode or a half-duplex mode.
3. The device of claim 1 , wherein the pair of reflectors are formed using a single mold.
4. The device of claim 1 , wherein the profiles of the first and second reflectors overlap.
5. The device of claim 1 , further comprising a mounting unit for mounting the radio device onto a pole, wherein the mounting unit is coupled to the backside of the housing.
6. The device of claim 5 , wherein the mounting unit includes:
an azimuth-adjustment mechanism for adjusting the reflectors' azimuth; and
an elevation-adjustment mechanism for adjusting the reflectors' elevation.
7. The device of claim 1 , wherein the PCB further comprises a field-programmable gate array (FPGA) chip coupled to the transmitter and the receiver.
8. The device of claim 7 , wherein the PCB further comprises a central processing unit (CPU) coupled to the FPGA chip.
9. The device of claim 7 , further comprising an Ethernet transceiver coupled to the FPGA chip.
10. The device of claim 1 , wherein the PCB further comprises a GPS receiver.
11. The device of claim 1 , wherein the transmitter further comprises a quadrature modulator for modulating transmitted signals.
12. The device of claim 11 , wherein the transmitter further comprises an IQ alignment module for automatic alignment of in-phase and quadrature components of transmitted signals.
13. The device of claim 1 , wherein the transmitter and the receiver are configured to operate in a 24 GHz frequency band.