CN-116706483-B - Communication device

CN116706483BCN 116706483 BCN116706483 BCN 116706483BCN-116706483-B

Abstract

The embodiment of the application discloses a communication device which comprises a first filter, a second filter and a coupling control unit, wherein a first coupling rod is arranged in a first resonant cavity of the first filter, a second coupling rod is arranged in a first resonant cavity of the second filter, the coupling control unit is arranged between the first resonant cavity of the first filter and the first resonant cavity of the second filter, the coupling control unit is connected with the first coupling rod and the second coupling rod, the first filter and the second filter are used for filtering radio frequency signals, the coupling control unit is used for controlling connection or disconnection between the first coupling rod and the second coupling rod, if the first coupling rod and the second coupling rod are connected, the working state of the communication device is in a power division state, and if the first coupling rod and the second coupling rod are disconnected, the working state of the communication device is in a direct state. Through the communication device, the function of the reconfigurable cross coupler can be realized through the filter design, and the insertion loss of the system is reduced.

Inventors

WU HENGHENG
SHI JING
MA NI

Assignees

华为技术有限公司

Dates

Publication Date: 20260512
Application Date: 20220228

Claims (9)

1. A communication device, comprising a first filter, a second filter, and a coupling control unit, wherein: The first filter comprises at least one resonant cavity, and a first coupling rod is arranged in the first resonant cavity of the first filter; the second filter comprises at least one resonant cavity, wherein a second coupling rod is arranged in the first resonant cavity of the second filter, the coupling control unit is positioned between the first resonant cavity of the first filter and the first resonant cavity of the second filter, the coupling control unit is connected with the first coupling rod, and the coupling control unit is connected with the second coupling rod; The first filter and the second filter are used for filtering radio frequency signals; The coupling control unit is used for controlling the first coupling rod and the second coupling rod to be communicated or disconnected, if the first coupling rod and the second coupling rod are communicated, the working state of the communication device is a power division state, and if the first coupling rod and the second coupling rod are disconnected, the working state of the communication device is a straight-through state.
2. The apparatus of claim 1, wherein the coupling control unit comprises a first PIN diode, a second PIN diode, a first voltage control PIN, a second voltage control PIN, a first microstrip line, and a second microstrip line, wherein: the first voltage control PIN is connected with the first PIN diode, the positive electrode of the first PIN diode is connected with the first microstrip line, the negative electrode of the first PIN diode is connected with the second microstrip line, the second voltage control PIN is connected with the second PIN diode, the negative electrode of the second PIN diode is connected with the first microstrip line, the positive electrode of the second PIN diode is connected with the second microstrip line, the first microstrip line is connected with the first coupling rod, and the second microstrip line is connected with the second coupling rod.
3. The apparatus of claim 2, wherein the first PIN diode and the second PIN diode are turned on and the first coupling bar and the second coupling bar are in communication if the first voltage control PIN provides a forward voltage to the first PIN diode and the second voltage control PIN provides a forward voltage to the second PIN diode; If the first voltage control PIN provides reverse voltage for the first PIN diode and the second voltage control PIN provides reverse voltage for the second PIN diode, the first PIN diode and the second PIN diode are cut off, and the first coupling rod and the second coupling rod are disconnected.
4. The apparatus of claim 1, wherein the coupling control unit comprises a power supply component, a switching control component, a third microstrip line, a fourth microstrip line, and a load resistor, wherein: The power supply component is connected with the switch component, the switch control component is connected with the switch component, the switch component is connected with the third microstrip line, the switch component is connected with the fourth microstrip line, the load resistor is grounded, the switch component is also connected with the load resistor, the third microstrip line is connected with the first coupling rod, and the fourth microstrip line is connected with the second coupling rod.
5. The apparatus of claim 4, wherein the first coupling rod and the second coupling rod are in communication if the switch control assembly controls the switch assembly to communicate the third microstrip line and the fourth microstrip line, and wherein the first coupling rod and the second coupling rod are disconnected if the switch control assembly controls the switch assembly to connect the load resistor.
6. A communication device comprising a first filter, a second filter, and a common resonant cavity, wherein: The first filter comprises at least one resonant cavity, the second filter comprises at least one resonant cavity, the public resonant cavity is positioned between the first resonant cavity of the first filter and the first resonant cavity of the second filter, the public resonant cavity is connected with the first resonant cavity of the first filter, and the public resonant cavity is connected with the first resonant cavity of the second filter; The first filter and the second filter are used for filtering radio frequency signals; The public resonant cavity is used for isolating the first filter and the second filter or coupling the first filter and the second filter, the working state of the communication device is a through state if the first filter and the second filter are isolated, and the working state of the communication device is a power division state if the first filter and the second filter are coupled.
7. The apparatus of claim 6, further comprising a varactor within the common resonant cavity, the varactor for controlling a resonant frequency of the common resonant cavity; if the varactor controls the resonant frequency of the public resonant cavity and is far away from the working frequency band of the first filter and the second filter, the first filter and the second filter are isolated; and if the varactor diode controls the resonant frequency of the public resonant cavity and is in the working frequency range of the first filter and the second filter, the first filter and the second filter are coupled.
8. A communication device comprising a first filter, a second filter, and a ground control assembly, wherein: The first filter includes at least one resonant cavity, and the second filter includes at least one resonant cavity; the grounding control assembly is connected with the first resonant cavity of the second filter; The first filter and the second filter are used for filtering radio frequency signals; the grounding control component is used for controlling whether the first resonant cavity of the second filter is grounded or not, if the first resonant cavity of the second filter is not grounded, the working state of the communication device is in a power division state, and if the first resonant cavity of the second filter is grounded, the working state of the communication device is in a straight-through state.
9. The apparatus of claim 8, wherein the ground control component is a PIN diode.

Description

Communication device Technical Field The embodiment of the application relates to the field of wireless communication, in particular to a communication device. Background In order to meet the time background of green development and improve the flexibility of signal output states, the reconfigurable cross coupler is applied to the radio frequency channel, so that the power consumption of the radio frequency channel can be reduced while the performance of the base station is ensured. In general, one implementation of the reconfigurable cross coupler is to implement a 90 ° bridge in the form of a microstrip line, and load a reactance element in the middle of the cross, and implement switching between the power division state and the pass-through state of the reconfigurable cross by changing the reactance value of the reactance element. Or another implementation of the reconfigurable cross-coupler is to switch between the power splitting state and the pass-through state by controlling the connection of the radio frequency switch. However, the application of such reconfigurable cross-couplers to radio frequency channels has a significant impact on system metrics due to insertion loss (hereinafter referred to as insertion loss). Disclosure of Invention The embodiment of the application provides a communication device, which realizes a reconfigurable crossover network through a joint filter, so that the communication device can work in a power division state and a direct state, and extra insertion loss caused by introducing a crossover by a system is avoided. The application provides a communication device which comprises a first filter, a second filter and a coupling control unit, wherein the first filter comprises at least one resonant cavity, a first coupling rod is arranged in a first resonant cavity of the first filter, the second filter comprises at least one resonant cavity, a second coupling rod is arranged in a first resonant cavity of the second filter, the coupling control unit is arranged between the first resonant cavity of the first filter and the first resonant cavity of the second filter, the coupling control unit is connected with the first coupling rod, the coupling control unit is connected with the second coupling rod, the first filter and the second filter are used for filtering radio frequency signals, the coupling control unit is used for controlling the first coupling rod and the second coupling rod to be communicated or disconnected, the working state of the communication device is in a power division state if the first coupling rod and the second coupling rod are communicated, and the working state of the communication device is in a straight-through state if the first coupling rod and the second coupling rod are disconnected. In combination with the first aspect, in a possible implementation manner, the coupling control unit includes a PIN diode 11, a PIN diode 12, a voltage control PIN V1, a voltage control PIN V2, a microstrip line 1 and a microstrip line 2, wherein the voltage control PIN V1 is connected with the PIN diode 11, the positive electrode of the PIN diode 11 is connected with the microstrip line 1, the negative electrode of the PIN diode 11 is connected with the microstrip line 2, the voltage control PIN V2 is connected with the PIN diode 12, the negative electrode of the PIN diode 12 is connected with the microstrip line 1, the positive electrode of the PIN diode 12 is connected with the microstrip line 2, the microstrip line 1 is connected with the first coupling rod, and the microstrip line 2 is connected with the second coupling rod. In combination with the first aspect, in one possible implementation, if the voltage control PIN V1 provides a forward voltage for the PIN diode 11 and the voltage control PIN V2 provides a forward voltage for the PIN diode 12, the PIN diode 11 and the PIN diode 12 are turned on, the first coupling lever and the second coupling lever are connected, and if the voltage control PIN V1 provides a reverse voltage for the PIN diode 11 and the voltage control PIN V2 provides a reverse voltage for the PIN diode 12, the PIN diode 11 and the PIN diode 12 are turned off, and the first coupling lever and the second coupling lever are disconnected. With reference to the first aspect, in one possible implementation manner, the coupling control unit comprises a power supply component, a switch control component, a microstrip line 3, a microstrip line 4 and a load resistor, wherein the power supply component is connected with the switch component, the switch control component is connected with the switch component, the switch component is connected with the microstrip line 3, the switch component is connected with the microstrip line 4, the load resistor is grounded, the switch component is also connected with the load resistor, the microstrip line 3 is connected with a first coupling rod, and the microstrip line 4 is connected with a second coupling rod.