Antenna wireless device
An antenna wireless device includes: antenna elements; feed ports respectively corresponding to the antenna elements; one or more detection ports each corresponding to some or all of the plurality of antenna elements; transceiver circuits respectively connected to feed ports; and one or more reference transceiver circuits each connected to a corresponding one or more of the one or more detection ports. For each antenna element, the transceiver circuit processes a first signal to generate a second signal, the second signal fed to the feed port is output to the reference transceiver circuit through the detection port, the reference transceiver circuit processes the second signal to generate a third signal, and detects an amplitude and phase deviation based on the first signal and the third signal, and the transceiver circuit adjusts a phase and an amplitude of a transmission signal based on the amplitude and phase deviation.
1. An antenna wireless device comprising:
a plurality of antenna elements on a substrate;
feed ports each associated with a corresponding one of the plurality of antenna elements;
one or more detection ports each associated with a corresponding at least one or all of the plurality of antenna elements;
transceiver circuits each connected to a corresponding one of the feed ports; and
one or more reference transceiver circuits each connected to a corresponding one or a corresponding plurality of detection ports of the one or more detection ports,
wherein
for each antenna element of the plurality of antenna elements,
a corresponding transceiver circuit of the transceiver circuits
subjects a first signal to transmission processing including digital to analog conversion and up-conversion to generate a second signal, and
feeds the second signal to a corresponding feed port of the feed ports,
the corresponding feed port being connected to the corresponding transceiver circuit,
the second signal fed to the corresponding feed port is output to a corresponding reference transceiver circuit of the one or more reference transceiver circuits through a corresponding detection port of the one or more detection ports,
the corresponding reference transceiver circuit being connected to the corresponding detection port,
the corresponding detection port being associated with the antenna element with which the corresponding feed port is associated,
the corresponding reference transceiver circuit
subjects the second signal to processing including analog to digital conversion and down-conversion to generate a third signal,
detects a first amplitude and phase deviation based on the first signal and the third signal, and
outputs the first amplitude and phase deviation to the corresponding transceiver circuit, and
the corresponding transceiver circuit adjusts a phase and an amplitude of a transmission signal based on the first amplitude and phase deviation.
2. The antenna wireless device according to claim 1 , wherein
for each antenna element of the plurality of antenna elements,
the corresponding reference transceiver circuit
subjects a fourth signal to processing including digital to analog conversion and up-conversion to generate a fifth signal, and
feeds the fifth signal to the corresponding detection port connected to the corresponding reference transceiver circuit,
the fifth signal fed to the corresponding detection port is output to the corresponding transceiver circuit through the corresponding feed port,
the corresponding transceiver circuit being connected to the corresponding feed port,
the corresponding feed port being associated with the antenna element with which the corresponding detection port is associated, and
the corresponding transceiver circuit
subjects the fifth signal to reception processing including analog to digital conversion and down-conversion to generate a sixth signal,
detects a second amplitude and phase deviation based on the fourth signal and the sixth signal, and
adjusts a phase and an amplitude of a reception signal based on the second amplitude and phase deviation.
3. The antenna wireless device according to claim 2 , further comprising:
a first code sequence generator which, in operation, generates a first code sequence; and
a second code sequence generator which, in operation, generates a second code sequence,
wherein
the first signal is the first code sequence generated by the first code sequence generator,
the corresponding reference transceiver circuit detects the first amplitude and phase deviation based on a correlation between the third signal and the first code sequence,
the fourth signal is the second code sequence generated by the second code sequence generator, and
the corresponding transceiver circuit detects the second amplitude and phase deviation based on a correlation between the sixth signal and the second code sequence.
4. The antenna wireless device according to claim 1 , wherein
the substrate includes an antenna pattern on a top surface of the substrate and a ground (GND) plane on a bottom surface of the substrate, and
each of the one or more detection ports includes a through via hole between the antenna pattern and the GND plane, the through via hole separating the detection port from the antenna pattern on the top surface of the substrate.
5. The antenna wireless device according to claim 1 , wherein
the substrate includes a multilayer substrate,
the substrate includes an antenna pattern on a top surface of the substrate and a ground (GND) plane on a bottom surface of the substrate, and
each of the one or more detection ports includes an inner via hole between the multilayer substrate and the GND plane, the inner via hole separating the detection port from the antenna pattern.
6. The antenna wireless device according to claim 1 , wherein
the substrate includes an antenna pattern on a top surface of the substrate and a ground (GND) plane on a bottom surface of the substrate, and
each of the one or more detection ports is disposed on the GND plane, and is separated from the antenna pattern.
7. The antenna wireless device according to claim 1 , wherein each of the one or more detection ports is disposed in a substantially intermediate position between corresponding two antenna elements of the plurality of antenna elements, the corresponding two antenna elements being adjacent to each other.
8. The antenna wireless device according to claim 7 , wherein each of the one or more detection ports includes a pad pattern.
9. The antenna wireless device according to claim 1 , wherein
each of the plurality of antenna elements is associated with
a first feed port for a first polarized wave,
a second feed port for a second polarized wave,
a first detection port for the first feed port, and
a second detection port for the second feed port.
10. The antenna wireless device according to claim 1 , wherein
the plurality of antenna elements include four antenna elements arrayed two by two in a rectangular grid form, and
one of the one or more detection ports is disposed in a substantially intermediate position among the four antenna elements, and is associated with the four antenna elements.