CN215529013U - Antenna combining circuit and circuit board thereof - Google Patents
Antenna combining circuit and circuit board thereof Download PDFInfo
- Publication number
- CN215529013U CN215529013U CN202122492008.2U CN202122492008U CN215529013U CN 215529013 U CN215529013 U CN 215529013U CN 202122492008 U CN202122492008 U CN 202122492008U CN 215529013 U CN215529013 U CN 215529013U
- Authority
- CN
- China
- Prior art keywords
- signal
- antenna
- chip
- combining
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Aerials (AREA)
Abstract
The utility model discloses an antenna combining circuit and a circuit board thereof, which comprise an antenna and a combining chip, wherein the combining chip can enable the antenna to be used as a transmitting antenna to transmit signals when a controller expects to transmit the signals, and enable the antenna to be used as a receiving antenna to receive the signals when the controller expects to receive the signals. Therefore, the two antennas are not required to be arranged, and the signal can be received and sent by one antenna, so that the requirements of a controller for receiving and sending signals are met, the cost is saved, and the difficulty in installing the antennas is reduced.
Description
Technical Field
The utility model relates to the technical field of antennas, in particular to an antenna combining circuit and a circuit board thereof.
Background
A control machine in the prior art needs to be connected with a transmitting antenna and a receiving antenna respectively when receiving or transmitting a signal, and when the control machine wants to transmit a signal, the control machine sends the signal out through the transmitting antenna and receives the signal through the receiving antenna when the control machine wants to receive the signal. However, since the mounting difficulty of the antennas is high and there is a limit to the number of the mounted antennas, how to reduce the number of the antennas while ensuring the transmission and reception of the control machine is an urgent problem to be solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an antenna combining circuit and a circuit board thereof, wherein two antennas are not required to be arranged, and one antenna can realize the receiving and sending of signals, so that the requirements of a controller for receiving and sending signals are met, the cost is saved, and the difficulty in installing the antenna is reduced.
In order to solve the above technical problem, the present invention provides an antenna combining circuit, including:
an antenna for receiving or transmitting a signal;
the signal interaction end is connected with the signal interaction end of the antenna, the signal output end is connected with the signal receiving end of the controller, and the signal input end is connected with the signal sending end of the controller; and transmitting the second signal sent by the controller to the antenna when the controller expects to send the second signal.
Preferably, the method further comprises the following steps:
and the first filtering module is arranged between the signal output end of the combining chip and the signal receiving end of the controller and used for filtering clutter in the first signal transmitted by the combining chip.
Preferably, the method further comprises the following steps:
and the second filtering module is arranged between the signal input end of the combining chip and the signal sending end of the controller and is used for filtering clutter in the second signal sent by the controller.
Preferably, the method further comprises the following steps:
and the third filtering module is arranged between the signal interaction end of the combination chip and the signal interaction end of the antenna and is used for filtering clutter in the first signal received by the antenna and the second signal transmitted and transmitted by the combination chip.
Preferably, the method further comprises the following steps:
the direct current power supply is used for supplying power to the antenna;
the input end of the filter is connected with the output end of the direct current power supply, and the output end of the filter is connected with the signal interaction end of the antenna and the fourth filter module connected with the third filter module and used for filtering ripples in direct current output by the direct current power supply.
Preferably, the first ground terminal of the combiner chip is disposed between the signal output terminal and the signal input terminal of the combiner chip;
the signal output end of the combined chip and the wiring of the signal input end have equal length and equal distance, and are both copper-clad with the width not less than the preset width;
the routing of the first grounding end of the combining chip is copper-coated with the width not less than the preset isolation width so as to isolate the signal output end and the signal output end of the combining chip.
Preferably, the signal interaction end of the antenna and the signal interaction end of the combiner chip are both copper-clad wires with a width not less than a preset width;
the signal interaction end of the combiner chip is arranged between a second grounding end and a third grounding end of the combiner chip;
the routing of the second grounding end and the third grounding end of the combination chip are both copper-coated routing with the width not less than the preset isolation width, and the routing of the second grounding end and the third grounding end of the combination chip surrounds the routing of the signal interaction end of the combination chip.
Preferably, the combiner chip is a GP2S1+ type chip.
In order to solve the technical problem, the utility model provides an antenna combining circuit board, which comprises the antenna combining circuit and a circuit board, wherein the antenna combining circuit is arranged on the circuit board.
Preferably, the circuit board is an FR-4 printed circuit board.
The application provides an antenna combiner circuit and a circuit board thereof, which comprises an antenna and a combiner chip, wherein the combiner chip can enable the antenna to be used as a transmitting antenna to transmit signals when a controller expects to transmit signals, and enable the antenna to be used as a receiving antenna to receive signals when the controller expects to receive signals. Therefore, the two antennas are not required to be arranged, and the signal can be received and sent by one antenna, so that the requirements of a controller for receiving and sending signals are met, the cost is saved, and the difficulty in installing the antennas is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the prior art and the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an antenna combining circuit according to the present invention;
fig. 2 is a schematic diagram of a connection relationship between a combining chip and a filtering module according to the present invention;
fig. 3 is a schematic diagram of a trace of an antenna combining circuit according to the present invention;
fig. 4 is a schematic diagram of traces of a first ground terminal, a signal output terminal and a signal input terminal of the combiner chip according to the present invention;
fig. 5 is a schematic diagram of traces of a second ground terminal, a third ground terminal and a signal interaction terminal of the combiner chip according to the present invention.
Detailed Description
The core of the utility model is to provide an antenna combining circuit and a circuit board thereof, one antenna can realize the receiving and sending of signals without arranging two antennas, thereby not only meeting the requirements of a controller for receiving and sending signals, but also saving the cost and reducing the difficulty of installing the antennas.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an antenna combining circuit provided in the present invention, the circuit includes:
an antenna 1 for receiving or transmitting signals;
the signal interaction end is connected with the signal interaction end of the antenna 1, the signal output end is connected with the signal receiving end of the controller, and the signal input end is connected with the signal sending end of the controller, so that the combiner chip 2 is used for transmitting the first signal received by the antenna 1 to the controller when the controller expects to receive the first signal; and transmits the second signal transmitted by the controller to the antenna 1 when the controller desires to transmit the second signal.
Currently, antennas are required for signal interaction between two devices, whether positioning or data communication. Therefore, when the control machine in the prior art wants to perform signal interaction with other devices, two antennas are usually required to be arranged, one antenna is used as a transmitting antenna, and the other antenna is used as a receiving antenna. However, because the antenna is difficult to install, the distance between the antenna and the controller is not too long (otherwise, the received or transmitted data may be interfered in the connection line between the antenna and the controller), and the space is limited when the antenna is installed, two antennas arranged in each controller cannot meet the requirements of users.
In order to solve the above technical problem, in the present application, a combining chip 2 is disposed between an antenna 1 and a controller, and the combining chip 2 is capable of transmitting a first signal to the controller when the controller expects to receive the first signal received by the antenna 1; the combining chip 2 can also transmit the second signal to the antenna 1 when the controller expects to send the second signal, so that the antenna 1 can transmit the first signal.
Based on this, need not to set up two antennas 1 (transmitting antenna and receiving antenna) in this application, one antenna 1 can realize the mutual of two-way information with the controller through combining chip 2, compares and reduces in two antenna installation difficulties in the installation to the cost has been saved to a certain extent.
The combining chip 2 may be, but is not limited to, a GP2S1+ type chip, and may be configured to implement bidirectional information interaction between the antenna 1 and the controller.
In addition, the combining chip 2 may also receive or transmit signals at a preset frequency according to the setting of the user, and the present application does not limit the specific situation of the receiving or transmitting signals of the combining chip 2.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating a connection relationship between a combining chip and a filtering module according to the present invention.
It should be further noted that, in order to avoid interference of the transmitted signal on the transmission line by other signals when information interaction is performed between the controller and the antenna 1, in the present application, a first filtering module LC1 is disposed between the signal output end of the combining chip 2 and the signal receiving end of the controller, a second filtering module LC2 is disposed between the signal input end of the combining chip 2 and the signal transmitting end of the controller, and a third filtering module LC3 is also disposed at the signal interaction end of the combining chip 2 and the signal interaction end of the antenna 1. Wherein, third filter module LC3 can realize the clutter filtering with the first signal of interaction between antenna 1 and the combination chip 2 or second signal to guarantee that antenna 1 is less in the clutter in the second signal when sending the second signal to other equipment, also can guarantee that antenna 1 transmits the clutter less to the first signal in combining chip 2, avoid the influence of clutter to first signal and second signal. The first filtering module LC1 can filter the clutter in the first signal transmitted by the combiner chip 2 to the controller again, so as to prevent other clutter mixed during the transmission of the first signal in the combiner chip 2 from being input to the controller, thereby affecting the normal operation of the controller. The second filtering module LC2 filters noise waves in the second signal sent by the controller, and prevents noise waves mixed between the controller and the combiner chip 2 from affecting other devices.
When the controller desires to send a second signal, the second signal is sent to the PORT _1 PORT of the combiner chip 2 through the second filtering module LC2, and then is sent to the antenna 1 from the SUM _ PORT of the combiner chip 2 through the third filtering module LC 3; when the controller expects to receive the first signal, the first signal passes through the third filtering module LC3 to the SUM _ PORT of the combiner chip 2, passes through the PORT _2 PORT of the combiner chip, and passes through the first filtering module LC1 to the controller. The capacitance of the capacitors in the first, second and third filter modules LC1, LC2, LC3 may be, but is not limited to, 10pF, and the inductance of the inductors may be, but is not limited to, 8.1 nH.
It should be noted that, in the actual circuit board design, the first filtering module LC1, the second filtering module LC2, and the third filtering module LC3 should be disposed closer to the combining chip 2, so as to avoid electromagnetic interference generated by an external device on the first signal and the second signal in the combining chip 2.
It can be seen that, by arranging the combiner chip 2, one antenna can be considered as an integrated Beidou positioning antenna and a Beidou short message antenna, so that the positioning and signal transmission can be realized.
In conclusion, the two antennas are not required to be arranged, and the receiving and sending of signals can be realized through one antenna, so that the requirements of a control machine for receiving and sending signals are met, the cost is saved, and the difficulty in installing the antennas is reduced.
On the basis of the above-described embodiment:
as a preferred embodiment, the method further comprises the following steps:
the direct current power supply is used for supplying power to the antenna 1;
the input end of the fourth filtering module LC4 is connected with the output end of the DC power supply, and the output end of the fourth filtering module LC4 is connected with the signal interaction end of the antenna 1 and the third filtering module LC3, and is used for filtering ripples in the DC output by the DC power supply.
In this embodiment, in order to solve this problem, the applicant has provided a dc power supply for supplying power to the antenna 1 in the present application, and in order to avoid that ripples in the dc power supply affect the second signal, a fourth filtering module LC4 capable of filtering ripples in the dc power is provided at a signal interaction end of the dc power supply and the antenna 1 in the present application, as shown in fig. 2, the dc power output by the dc power supply in fig. 2 is supplied to the antenna 1 through the fourth filtering module LC4, capacitance values of two capacitors connected in parallel in the fourth filtering module may be, but are not limited to, 47uF and 100nF, and an inductance value of the inductor may be, but is not limited to, 8.1 nH. Not only the power of the second signal transmitted by the antenna 1 is ensured, but also the influence of the ripple in the direct current on the second signal is avoided.
As a preferred embodiment, the first ground terminal of the combiner chip 2 is disposed between the signal output terminal and the signal input terminal of the combiner chip;
the signal output end of the combining chip 2 and the routing of the signal input end have equal length and equal distance, and are all copper-clad with the width not less than the preset width;
the routing of the first grounding end of the combining chip 2 is copper-coated with the width not less than the preset isolation width so as to isolate the signal output end and the signal output end of the combining chip.
Referring to fig. 3 and fig. 4, fig. 3 is a schematic diagram of traces of an antenna combining circuit provided by the present invention, and fig. 4 is a schematic diagram of traces of a first ground terminal, a signal output terminal and a signal input terminal of a combining chip provided by the present invention.
In this embodiment, in order to ensure the magnitude (e.g., 0.5A) of the current of the signal that can be transmitted by the signal input end and the signal output end of the combiner chip 2, the copper-clad width of the traces of the signal input end and the signal output end of the combiner chip 2 is not less than the preset width (e.g., 0.5mm), and in order to meet the requirement of the signal on impedance, the lengths of the traces of the signal input end and the signal output end of the combiner chip 2 also need to be equal.
In addition, the first ground terminal of the combiner chip 2 is disposed between the signal input terminal and the signal output terminal, and when the normal grounding of the combiner chip 2 can be ensured, the signal of the signal input terminal and the signal output by the signal output terminal are isolated, wherein the copper-coated width of the trace of the first ground terminal is not less than the preset isolation width (e.g., 1.4mm), and the signal input terminal and the signal output terminal can be isolated.
It should be further noted that C1, C2, and L3 in fig. 3 constitute a first filtering module LC1, C4, C5, and L4 constitute a second filtering module LC2, C3, and L2 constitute a third filtering module LC3, and C6, C7, and L1 constitute a fourth filtering module LC 4.
As a preferred embodiment, the signal interaction end of the antenna 1 and the signal interaction end of the combiner chip 2 are both copper-clad wires with a width not less than a preset width;
the signal interaction end of the combiner chip 2 is arranged between the second grounding end and the third grounding end of the combiner chip;
the traces of the second ground terminal and the third ground terminal of the combiner chip 2 are both copper-clad traces with a width not less than the preset isolation width, and the traces of the second ground terminal and the third ground terminal of the combiner chip 2 surround the traces of the signal interaction terminal of the combiner chip.
Referring to fig. 5, fig. 5 is a schematic diagram of traces of a second ground terminal, a third ground terminal and a signal interaction terminal of the combiner chip according to the present invention.
In this embodiment, the copper-clad widths of the traces at the signal interaction end of the antenna 1 and the signal interaction end of the combiner chip 2 are not smaller than a preset width (e.g., 0.5mm), so that the current (e.g., 0.5A) of the signals that can be transmitted by the two signal interaction ends can be ensured.
In addition, in order to avoid the signal interaction end of the combiner chip 2 and the signal interaction end of the antenna 1 from being interfered by an external device, the copper-clad layers of the second grounding end and the third grounding end of the combiner chip 2 in the application surround the copper-clad layers of the two signal interaction ends, so that the normal grounding of the combiner chip 2 is ensured, and the influence on the signal interaction end of the antenna 1 and the signal interaction end of the combiner and the external device can also be ensured.
It should be noted that, in order to ensure complete isolation of the two signal interaction ends, the traces of the second ground end and the third ground end of the combiner chip 2 are both copper-clad wires whose widths are not less than the preset isolation width.
In addition, because the signals of the signal interaction end, the signal output end and the signal input end of the combiner chip 2 are all alternating current signals, the routing of the signal interaction end, the signal output end and the signal input end of the combiner chip 2 needs to be short and thick, the short is to avoid the signal being interfered in the routing, the thick is to increase the current-carrying capacity of the signal, and the power loss of the signal in the transmission process is reduced.
In order to solve the above technical problem, the present invention provides an antenna 1 combining circuit board, including the above antenna 1 combining circuit, and further including a circuit board, where the antenna 1 combining circuit is disposed on the circuit board.
Please refer to the above embodiments for the introduction of the antenna combining circuit board provided by the present invention, which is not described herein again.
In a preferred embodiment, the circuit board is an FR-4 material printed circuit board.
The applicant considers that the antenna 1 needs to be impedance matched during hardware design, communication efficiency is reduced if impedance matching is poor, the antenna 1 may be damaged when working in a bad state for a long time, and a control machine may also be damaged, and conventionally, a circuit board made of a ceramic material is generally adopted to obtain a good dielectric coefficient when the antenna 1 is impedance matched, but the circuit board is high in cost and difficult to process.
In order to solve the above problems, in this embodiment, the circuit board is a printed circuit board made of FR-4 material, which not only can ensure the requirement of the signal on the impedance, make the antenna 1 perform impedance matching, reduce the voltage standing wave ratio, improve the signal transmission efficiency of the antenna 1, but also can reduce the cost.
Of course, the circuit board is not limited to be an FR-4 printed circuit board in this application.
Further, the area of the circuit board in the present application may be, but is not limited to, 35mm 25 mm.
It should be noted that, the length, width, and position of each routing mentioned in the present application are not limited, and may be designed according to the actual needs of the user.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An antenna combining circuit, comprising:
an antenna for receiving or transmitting a signal;
the signal interaction end is connected with the signal interaction end of the antenna, the signal output end is connected with the signal receiving end of the controller, and the signal input end is connected with the signal sending end of the controller; and transmitting the second signal sent by the controller to the antenna when the controller expects to send the second signal.
2. The antenna combining circuit of claim 1, further comprising:
and the first filtering module is arranged between the signal output end of the combining chip and the signal receiving end of the controller and used for filtering clutter in the first signal transmitted by the combining chip.
3. The antenna combining circuit of claim 1, further comprising:
and the second filtering module is arranged between the signal input end of the combining chip and the signal sending end of the controller and is used for filtering clutter in the second signal sent by the controller.
4. The antenna combining circuit of claim 1, further comprising:
and the third filtering module is arranged between the signal interaction end of the combination chip and the signal interaction end of the antenna and is used for filtering clutter in the first signal received by the antenna and the second signal transmitted and transmitted by the combination chip.
5. The antenna combining circuit of claim 4, further comprising:
the direct current power supply is used for supplying power to the antenna;
the input end of the filter is connected with the output end of the direct current power supply, and the output end of the filter is connected with the signal interaction end of the antenna and the fourth filter module connected with the third filter module and used for filtering ripples in direct current output by the direct current power supply.
6. The antenna combining circuit of claim 1, wherein the first ground terminal of the combining chip is disposed between the signal output terminal and the signal input terminal thereof;
the signal output end of the combined chip and the wiring of the signal input end have equal length and equal distance, and are both copper-clad with the width not less than the preset width;
the routing of the first grounding end of the combining chip is copper-coated with the width not less than the preset isolation width so as to isolate the signal output end and the signal output end of the combining chip.
7. The antenna combining circuit of claim 1, wherein the signal interaction end of the antenna and the trace of the signal interaction end of the combining chip are both copper-clad with a width not less than a preset width;
the signal interaction end of the combiner chip is arranged between a second grounding end and a third grounding end of the combiner chip;
the routing of the second grounding end and the third grounding end of the combination chip are both copper-coated routing with the width not less than the preset isolation width, and the routing of the second grounding end and the third grounding end of the combination chip surrounds the routing of the signal interaction end of the combination chip.
8. The antenna combining circuit of any one of claims 1-7, wherein the combining chip is a GP2S1+ type chip.
9. An antenna combining circuit board, comprising the antenna combining circuit of any one of claims 1-8, and further comprising a circuit board, wherein the antenna combining circuit is disposed on the circuit board.
10. The antenna combiner circuit board of claim 9, wherein the circuit board is an FR-4 material printed circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122492008.2U CN215529013U (en) | 2021-10-15 | 2021-10-15 | Antenna combining circuit and circuit board thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122492008.2U CN215529013U (en) | 2021-10-15 | 2021-10-15 | Antenna combining circuit and circuit board thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215529013U true CN215529013U (en) | 2022-01-14 |
Family
ID=79798497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122492008.2U Active CN215529013U (en) | 2021-10-15 | 2021-10-15 | Antenna combining circuit and circuit board thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215529013U (en) |
-
2021
- 2021-10-15 CN CN202122492008.2U patent/CN215529013U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018168282A1 (en) | Circuit module, network module, and automotive electronic device | |
| CN1509526A (en) | Power line networking apparatus and method | |
| JP4531399B2 (en) | Transmit and / or receive module | |
| CN111987433A (en) | Antenna structure and electronic equipment | |
| US6396458B1 (en) | Integrated matched antenna structures using printed circuit techniques | |
| CN103532814A (en) | Network communication device | |
| CN217508769U (en) | NFC antenna circuit and electronic equipment | |
| CN1171656A (en) | Antenna matching circuit switching system in TDMA portable telephone | |
| CN109818134B (en) | Terminal with metal frame antenna | |
| CN215266663U (en) | BT antenna with filtering function | |
| US5945957A (en) | Window glass antenna apparatus | |
| CN215529013U (en) | Antenna combining circuit and circuit board thereof | |
| CN113169921A (en) | Isolation circuit and device for controller area network communication | |
| CN218334298U (en) | Anti-interference microwave detection module | |
| CN110383631A (en) | Mode of resonance power receiving system | |
| US6757386B1 (en) | Apparatus, system, and method for efficient reduction of electromagnetic interference in telecommunications equipment | |
| US11283485B2 (en) | Circuit for signal connection, device for inductive power transfer and for signal transmission | |
| CN113394559A (en) | BT antenna with filtering function | |
| JP3652562B2 (en) | Transceiver | |
| CN113285731B (en) | Signal transmission device and cable connection circuit | |
| CN217239724U (en) | 10dB coupler capable of passing through direct current signal for talkback communication | |
| CN217935576U (en) | Filter | |
| CN114204944B (en) | Signal receiving and transmitting device and terminal | |
| CN216721180U (en) | 86 box control circuit and 86 box based on power line carrier | |
| CN216599875U (en) | Wireless communication module and set top box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |