TW202021190A - Combined antenna - Google Patents

Abstract

A combined antenna includes a first active module and a second active module. The first active module includes a first passive antenna, a first active circuit and an input-output contact. The first active circuit is electrically connected to the first passive antenna. The input-output contact is electrically connected to the first active circuit. The second active module includes a second passive antenna, a second active circuit and an input contact. The second active circuit is electrically connected to the second passive antenna. The input contact is electrically connected to the second active circuit. Moreover, the second active circuit is electrically connected to the first active circuit. The second active circuit provides the first active circuit with a required electric power. Received signals or transmitted signals are amplified, or the transmitted signals and the received signals are amplified, to improve a sensitivity of the received signals and a strength of the transmitted signals.

Description

Compound antenna

The invention relates to a composite antenna, in particular to an active antenna to provide the power required by a passive antenna to amplify the received signal or the transmitted signal to make the received or transmitted signal better, or to amplify the received signal and the transmitted signal so that The effect of receiving and transmitting signals is better.

It is known that the current satellite navigation system for vehicles can guide the vehicle from place A to place B when the driver of the vehicle is unfamiliar with the route of the road, which can avoid the driving hazard of the driver looking for the map by himself and asking the passerby Cumbersome, so satellite navigation systems have been widely used in vehicles or mobile communication devices.

The existing satellite navigation system includes a satellite navigation system 10a that at least includes an active module 101a and a passive module 102a (as shown in FIG. 1). The active module 101a includes a GPS passive antenna 1011a and an active circuit 1012a and a signal input contact 1013a. The passive module 102a includes a wifi or LTE passive antenna 1021a and a signal input/output contact 1022a. When the system 10a is in use, the satellite navigation line signal is received through the GPS passive antenna 1011a, and after processing by the active circuit 1012a, the signal is transmitted to the GPS circuit at the back end for arithmetic processing to execute the navigation mode. When the system 10a wants to communicate or update data on the Internet, it will communicate or update data through the passive antenna 1021a of the passive module 102a.

When the system 10a performs data update or communication, the system 10a is far away from the base station or there are many obstacles in the vicinity, which will attenuate the reception signal and the transmission signal of the passive antenna 1021a, so that the data update speed on the Internet becomes slower or Unable to connect to the network, causing inconvenience in use.

Therefore, the main purpose of the present invention is to solve the traditional deficiency. The present invention provides an active circuit electrically connected between the passive antenna of the GPS satellite navigation system and the signal processing circuit at the back end, and is provided by the active circuit of the GPS satellite navigation system A power supply is used for the active circuit added to the passive antenna, so that the original passive antenna also becomes an active antenna. When connecting to the Internet to update data or communication, the received signal or the transmitted signal can be amplified, or the transmitted signal and the received signal can be amplified to improve The sensitivity of the received signal and the strength of the transmitted signal.

To achieve the above objective, the present invention provides a composite antenna, including: a first active module and a second active module. The first active module includes: a first passive antenna; a first active circuit electrically connected to the first passive antenna; an input and output contact electrically connected to the first active circuit. The second active module includes: a second passive antenna; a second active circuit electrically connected to the second passive antenna; an input contact electrically connected to the second active circuit. The second active circuit is electrically connected to the first active circuit, and the second active circuit is used to provide power required by the first active circuit.

In an embodiment of the invention, the first active circuit includes: a first switch, a second switch, a radio frequency detector, a receiving active circuit and a transmitting active circuit. The first open relationship is related to the first passive antenna. The second open relationship is electrically connected to the input and output contacts. The radio frequency detector is electrically connected to the first switch, the second switch, the input-output contact and the second active circuit to detect the transmitted signal. The receiving active circuit. It is electrically connected to a receiving path between the first switch and the second switch, and is electrically connected to the second active circuit. The transmitting active circuit is electrically connected to a transmitting path between the first switch and the second switch, and is electrically connected to the second active circuit.

In an embodiment of the invention, the receiving active circuit includes a first filter and a first low noise amplifier electrically connected to the first filter.

In an embodiment of the invention, the transmitting active circuit includes a second filter and a power amplifier with the second filter.

In one embodiment of the present invention, the first passive antenna is a WIFI or LTE antenna.

In an embodiment of the invention, the receiving active circuit includes a first low noise amplifier.

In an embodiment of the invention, the transmitting active circuit includes a power amplifier.

In an embodiment of the invention, the first active circuit includes: a first switch, a second switch, a radio frequency detector, and a receiving active circuit. The first open relationship is electrically connected to the first passive antenna. The second opening relationship is electrically connected to the first switch and the input-output contact to form a transmission path. The radio frequency detector is electrically connected to the first switch, the second switch, the input-output contact and the second active circuit to detect the transmitted signal. The receiving active circuit is electrically connected to a receiving path between the first switch and the second switch, and is electrically connected to the second active circuit.

In an embodiment of the invention, the receiving active circuit includes a first low noise amplifier.

In an embodiment of the present invention, the first active circuit includes: a first switch, a second switch, a radio frequency detector, and an emission active circuit. The first open relationship is electrically connected to the first passive antenna. The second opening relationship is electrically connected to the first switch to form a receiving path. The radio frequency detector is electrically connected to the first switch, the second switch, the input-output contact and the second active circuit to detect the transmitted signal. The transmitting active circuit is electrically connected to a transmitting path between the first switch and the second switch, and is electrically connected to the second active circuit.

In an embodiment of the invention, the transmitting active circuit includes a power amplifier.

In an embodiment of the invention, the second passive antenna is a receiving conductor of an active antenna for satellite navigation.

In an embodiment of the invention, the second active circuit includes a second low noise amplifier, a third filter, a third low noise amplifier and a voltage regulator.

The technical content and detailed description of the present invention are described below in conjunction with the drawings:

Please refer to FIGS. 2 and 3, which are schematic circuit diagrams of the composite antenna of the first embodiment of the present invention. As shown in the figure: the composite antenna of the present invention includes: a first active module 10 and a second active module 20. The second active module 20 is used to provide power to the first active module 10 to amplify the signals received and transmitted by the first active module 10, so as to increase the reception sensitivity and transmission effect.

The first active module 10 includes a first passive antenna (First Passive Antenna) 101, a first active circuit (First Active circuit) 102 and an input/output contact 103. The second active circuit 102 includes a radio frequency detector (RF Detector) 1021, a first switch (First Switch) 1022, a second switch (Second Switch) 1023, a receiving active circuit 1024 and a transmitting active circuit 1025. The radio frequency detector 1021 is electrically connected to the first switch 1022, the second switch 1023, the input-output contact 103 and the voltage regulator 2024 of the second active module 20. The first switch 1022 is electrically connected to the radio frequency detector 1021 and the first passive antenna 101. The second switch 1023 is electrically connected to the RF detector 1021 and the input/output contact 103. The receiving active circuit 1024 is electrically connected to a receiving path between the first switch 1022 and the second switch 1023 and is electrically connected to the voltage regulator 2024 of the second active circuit 202. The transmit active circuit 1025 is electrically connected to a transmit path between the first switch 1022 and the second switch 1023, and is electrically connected to the voltage regulator 2024 of the second active circuit 202. The input/output contact 103 is electrically connected to the second switch 1023, the radio frequency detector 1021, and a signal processing circuit (not shown) at the back end. The receiving active circuit 1024 includes a first filter (First Filter) 10241 and a first low noise amplifier (First Low Noise Amplify) 10242. The transmission active circuit 1025 includes a second filter (Second Filter) 10251 and a power amplifier (Power Amplify) 10252. In this drawing, the first passive antenna 101 is a WIFI or LTE antenna.

The second active module 20 includes a second passive antenna (Second Passive Antenna) 201, a second active circuit (Second Active Circuit) 202 and an input contact 203. The second passive antenna 201 is a receiving conductor of a GPS active antenna. The second active circuit 202 is electrically connected to the second passive antenna 201. The second active circuit 202 includes a second low noise Amplifier (Second Low Noise Amplify) 2021, a third filter (Third Filter) 2022, a third low noise amplifier (Third Low Noise Amplify) 2023 and a regulator (Regulator) 2024. The second low noise amplifier 2021 is electrically connected to the second passive antenna 201, the third filter 2022 is electrically connected to the second low noise amplifier 2021, the third low noise amplifier 2023 and the first Three filters 2022 are electrically connected. The voltage regulator 2024 is electrically connected to the second low noise amplifier 2021 and the third low noise amplifier 2023 to provide the power required by the second active circuit 202. The input is connected Point 203 is electrically connected to the voltage regulator 2024 and the third low noise amplifier 2023. In this diagram, the regulator 2024 provides a DC power output.

When the second active module 20 receives the signal, the GPS antenna is used as the second passive antenna 201 to receive the satellite signal, and after processing by the second active circuit 202, the satellite navigation signal is transmitted to the The back-end satellite navigation circuit (not shown) is processed on the system.

When the first active module 10 has not yet launched, the first switch 1022 and the second switch 1023 of the first active circuit 102 are on the receiving path through which the received signal passes. When receiving the signal, after the first passive antenna 101 receives the signal, it is directly amplified by the first filter 10241 and the first low noise amplifier 10242 of the first switch 1022 and the receiving active circuit 1024, and then amplified The subsequent signal is transmitted to the signal processing circuit at the back end through the second switch 1023 and the input/output contact 103. Due to the amplification of the received signal, the sensitivity of the received signal can be increased.

In addition, when the radio frequency detector 1021 detects that the signal reaches the set value of the transmitted signal, the radio frequency detector 1021 will activate the first switch 1022 and the second switch 1023 to be turned on, so that the transmitted signal passes from the input/output contact 103 through the The second switch 1023 is transmitted to the transmitting active circuit 1025, amplified by the second filter 10251 and the power amplifier 10252 of the transmitting active circuit 1025, and then passed through the first switch 1022 by the first passive antenna 101 The WIFI or LTE antenna is transmitted.

Please refer to FIG. 4, which is a block diagram of a signal transceiving circuit of a composite antenna according to a second embodiment of the present invention. As shown in the figure: This embodiment is substantially the same as the first embodiment, except that the transmission path of the first active circuit 102 of the first active module 10 is strong when the transmission signal of the first active module 10 is strong There is no need to electrically connect the transmission active circuit 1025. After detection by the RF detector 1021, the first switch 1022 and the second switch 1023 are switched to the transmission path, so that the transmission signal directly passes through the input and output contact 103 The second switch 1023, the transmission path, and the first switch 1022 are transmitted by the first passive antenna 102.

Secondly, the receiving active circuit 1024 of the first active circuit 102 is a single first low-noise amplifier 10242, directly amplifies the received signal and directly transmits it to the back-end signal processing circuit through the input and output contact 103 for processing .

Please refer to FIG. 5, which is a block diagram of a signal transceiving circuit of a composite antenna according to a third embodiment of the present invention. As shown in the figure: This embodiment is substantially the same as the first embodiment, except that when the received signal of the first active module 10 is strong, the receiving path of the first active circuit 102 of the first active module 10 There is no need to electrically connect the receiving active circuit 1024. After the first passive antenna 101 receives the signal, the received signal is directly transmitted through the first switch 1022, the second switch 1023, the receiving path, and the input/output contact 103 Processed in the signal processing circuit to the back end.

Secondly, the power amplifier 10252 of the active transmission circuit is electrically connected to the transmission signal path of the first active circuit 102, and when the RF detector 1021 detects the transmission signal, the first switch 1022 and the second switch are turned on The switch 1023 switches to the transmission signal path, so that the transmission signal is transmitted from the first passive antenna 102 through the input/output contact 103, the second switch 1023, the power amplifier 10252, and the first switch 1022.

Please refer to FIG. 6, which is a block diagram of a signal transceiving circuit of a composite antenna according to a fourth embodiment of the present invention. As shown in the figure: This embodiment is substantially the same as the first embodiment except that the receiving active circuit 1024 of the first active circuit 102 is the first low noise signal amplifier 10242, and the transmitting active circuit 1025 is the power amplifier 10252.

When the first active module 10 receives a signal, the RF detector 1021 of the first active circuit 102 needs to detect the signal. After the first passive antenna 101 receives the signal, it directly passes through the first switch 1022 and the receiving active After the first low noise amplifier 10242 of the circuit 1024 is amplified, the amplified signal is then passed through the second switch 1023 and the input/output contact 103 to be processed in the back-end signal processing circuit, because the received signal is amplified Processing can increase the sensitivity of the received signal.

In addition, when the radio frequency detector 1021 detects that the signal reaches the set value of the transmitted signal, the radio frequency detector 1021 will activate the first switch 1022 and the second switch 1023 to be turned on, so that the transmitted signal passes from the input/output contact 103 through the The second switch 1023 is transmitted to the transmitting active circuit 1025, amplified by the power amplifier 10252 of the transmitting active circuit 1025, and then transmitted by the WIFI or LTE antenna of the first passive antenna 101 after the first switch 1022 .

However, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of patent protection of the present invention, so any equivalent changes in the description or drawings of the present invention are included in the rights of the present invention in the same way. Within the scope of protection, Chen Ming.

Learn:

10a: Satellite navigation system

101a: Active module

1011a: GPS passive antenna

1012a: Active circuit

1013a: Signal input contact

102a: Passive module

1021a: Passive antenna

1022a: Signal input and output contacts

this invention:

10: The first active module

101: The first passive antenna

102: the first active circuit

1021: an RF detector

1022: the first switch

1023: Second switch

1024: Receive active circuit

10241: first filter

10242: the first low noise amplifier

1025: Launch active circuit

10251: Second filter

10252: Power amplifier

103: input and output contacts

20: Second active module

201: Second passive antenna

202: second active circuit

2021: Second Low Noise Amplifier

2022: Third filter

2023: Third Low Noise Amplifier

2024: voltage regulator

203: Input contact

FIG. 1 is a block diagram of a signal transmission circuit of a traditional compound antenna;

FIG. 2 is a schematic block diagram of a signal receiving and transmitting circuit of the composite antenna according to the first embodiment of the present invention;

FIG. 3 is a detailed block diagram of the signal transceiver circuit block of the composite antenna of FIG. 2;

FIG. 4 is a block diagram of a signal receiving and transmitting circuit of a composite antenna according to a second embodiment of the present invention;

FIG. 5 is a block diagram of a signal receiving and transmitting circuit of a composite antenna according to a third embodiment of the present invention;

FIG. 6 is a block diagram of a signal transceiving circuit of a composite antenna according to a fourth embodiment of the invention.

10: The first active module

101: The first passive antenna

102: the first active circuit

103: input and output contacts

20: Second active module

201: Second passive antenna

202: second active circuit

203: Input contact

Claims (13)

A compound antenna, including: a first active module, including: a first passive antenna; a first active circuit electrically connected to the first passive antenna; a first electrically connected to the first active circuit; Input and output contacts; and a second active module, including: a second passive antenna; a second active circuit electrically connected to the second passive antenna; an input electrically connected to the second active circuit Contacts; wherein, the second active circuit is electrically connected to the first active circuit, and the second active circuit provides power required by the first active circuit. The compound antenna as described in item 1 of the patent application scope, wherein the first active circuit includes: a first switch connected to the first passive antenna; a second switch connected to the input and output contacts Sexual connection: An RF detector is electrically connected to the first switch, the second switch, the input and output contacts and the second active circuit to detect the transmitted signal; a receiving active circuit is electrically connected to the A receiving path between the first switch and the second switch is electrically connected to the second active circuit; a transmitting active circuit is electrically connected between a first switch and the second switch The transmission path is electrically connected to the second active circuit. The compound antenna as described in item 2 of the patent application scope, wherein the receiving active circuit includes a first filter and a first low noise amplifier electrically connected to the first filter. The compound antenna as described in item 2 of the patent application scope, wherein the transmitting active circuit includes a second filter and a power amplifier with the second filter. The compound antenna as described in item 1 of the patent application scope, wherein the first passive antenna is a WIFI or LTE antenna. The compound antenna as described in item 2 of the patent application scope, wherein the receiving active circuit includes a first low noise amplifier. The compound antenna as described in item 2 of the patent application scope, wherein the transmitting active circuit includes a power amplifier. The composite antenna as described in item 1 of the patent application scope, wherein the first active circuit includes: a first switch electrically connected to the first passive antenna; a second switch connected to the first The switch and the input and output contacts are electrically connected to form a transmission path; an RF detector is electrically connected to the first switch, the second switch, the input and output contacts and the second active circuit to detect Transmitted signal; a receiving active circuit is electrically connected to a receiving path between the first switch and the second switch, and is electrically connected to the second active circuit. The compound antenna as described in item 8 of the patent application scope, wherein the receiving active circuit includes a first low noise amplifier. The composite antenna as described in item 1 of the patent application scope, wherein the first active circuit includes: a first switch electrically connected to the first passive antenna; a second switch connected to the first Switches are electrically connected to form a receiving path; an RF detector is electrically connected to the first switch, the second switch, the input and output contacts, and the second active circuit to detect the transmitted signal; an active transmitter The circuit is electrically connected to a transmission path between the first switch and the second switch, and is electrically connected to the second active circuit. The compound antenna as described in item 10 of the patent application scope, wherein the transmitting active circuit includes a power amplifier. The compound antenna as described in item 1 of the patent application scope, wherein the second passive antenna is a receiving conductor of an active antenna for satellite navigation. The compound antenna as described in item 1 of the patent scope, wherein the second active circuit includes a second low noise amplifier, a third filter, a third low noise amplifier and a voltage regulator.

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