TWI422110B - Rf interface converter - Google Patents

Description

RF interface converter

The invention relates to a radio frequency interface conversion device, in particular to a radio frequency interface conversion device which is convenient to use.

A variety of electrical appliances, such as televisions and computers, are often used to transmit information by radio frequency signals (Radio Frequency Signal), and generally have multiple radio frequency ports. Since the specifications of these RF ports may be inconsistent, it is often necessary to use an RF interface converter when transmitting signals between these RF ports.

As shown in FIG. 4 , it is a conventional RF interface conversion device 1 , which generally includes a first RF interface 2 for connecting an external RF device, a second RF interface 3 , and an electrical connection to the first RF. The cable 4 of the interface 2 and the second RF interface 3. Since the radio frequency interface switching device 1 has only one type of radio frequency device, it is difficult to meet the needs of using a plurality of different types of radio frequency devices to simultaneously transmit the radio frequency signals, which may cause inconvenience in use.

In view of this, it is necessary to provide an RF interface conversion device that is easy to use and capable of implementing multiple RF conversions.

An RF interface conversion device includes a plurality of radio frequency interfaces, and the plurality of radio frequencies The plurality of switches respectively connected to the interface and a total switch unit connected to the plurality of switches. The switching between the radio frequency interfaces can be realized by operating the main switching unit and different switches to turn on the radio interface corresponding to the switch.

An RF interface switching device includes a first switching unit and a second switching unit. The first switching unit and the second switching unit have a plurality of radio frequency interfaces and a plurality of switches. Each of the radio frequency interfaces is connected to a corresponding one of the switches, and the different switches are opened or closed to open the radio frequency interface opposite to the switch. The first switching unit and the second switching unit are at least Perform one-way RF signal transmission to realize the switching between the RF interfaces.

Compared with the prior art, the radio frequency interface conversion device has a plurality of radio frequency interfaces embedded in the casing, and the first switch module, the second switch module and the main switch unit are connected to the radio frequency interface by operating the radio frequency interface. Different switches can realize the transfer between the same or different types of RF interfaces for RF signal transmission. Therefore, the RF interface conversion device is convenient to use and has better flexibility, and can meet the signal switching requirements of a plurality of different types of RF interfaces.

100‧‧‧RF interface converter

10‧‧‧shell

12‧‧‧ side

14‧‧‧Operation surface

20‧‧‧First conversion unit

22‧‧‧First RF Interface Module

24‧‧‧First switch module

30‧‧‧Second conversion unit

32‧‧‧Second RF interface module

34‧‧‧Second switch module

40‧‧‧Main switch unit

50‧‧ ‧ baffle

60‧‧‧ transmission line

82‧‧‧Male

84‧‧‧Female

90‧‧‧ switch

1 is a perspective view of a radio frequency interface conversion device according to a preferred embodiment of the present invention.

2 is a top plan view of a radio frequency interface conversion device according to a preferred embodiment of the present invention.

3 is a circuit schematic diagram of a radio frequency interface conversion device according to a preferred embodiment of the present invention.

4 is a schematic diagram of a conventional RF signal conversion device.

Referring to FIG. 1 to FIG. 3, a radio frequency interface conversion device according to a preferred embodiment of the present invention is provided. 100 includes a housing 10, a first switching unit 20, a second switching unit 30, a main switching unit 40, and a first switching unit 20 and a second switching unit 30. Baffle 50.

The housing 10 can be a multi-faceted structure such as a regular quadrangular prism, a regular hexagonal prism, and the like, and includes a plurality of side faces 12 and an operation surface 14 perpendicular to the side faces 12. The first RF interface module 22 includes a first RF interface module 22 and a first switch module 24. Referring to FIG. 2, the first RF interface module 22 includes a plurality of RF interfaces (not labeled). The radio frequency interface may be any one of an SMA (Sub-Miniature-A) interface, an N interface, a BNC interface, or the like, or a combination of two or more of them, and is embedded in the shell. Side 12 of body 10. Each type of radio frequency interface has a male 82 and a female 84. When the RF signal is transmitted, the male 82 and the female 84 are respectively connected to the two RF signal interfaces. RF signal transmission can be realized. For ease of identification and application, the male and female 84 of the same RF interface are embedded on the same side 12, and the name or number of the interface can be indicated on the side 12.

The first switch module 24 includes a plurality of switches 90, and the plurality of switches 90 can be switch devices such as a conventional toggle switch and a single Pole Single Throw (SPST) switch. The switch 90 is disposed on the operation surface. And sliding along the operating surface 14 to turn the RF interface on and off. The number of radio frequency interfaces in the first switching unit 20 is the same as the number of the switches 90, and each of the radio frequency interfaces is connected to a corresponding switch 90 via a transmission line 60, and is controlled by the switch 90. The transmission line 60 has a resistance of 50 ohms, which is used to reduce the transmission loss of the RF signal, thereby obtaining a better RF signal transmission effect.

The second switching unit 30 includes a second RF interface module 32 and a second switch module 34. The structure of the second RF interface module 32 and the second switch module 34 and the first RF interface module 22 and the first switch module 24 are identical. The second RF interface module 32 includes a plurality of different types of radio frequency interfaces embedded in the side surface 12 of the housing 10 , and the second switch module 34 includes a plurality of switches 90 disposed on the operation surface 14 . The second switching unit 30 is the same as the number and type of the radio frequency interface and the switch 90 in the first switching unit 20, and each radio frequency interface is electrically connected to a corresponding switch 90, and is controlled by the switch 90. .

Referring to FIG. 3 , the main switch unit 40 can be a switch device such as a conventional toggle switch, a single-pole single-throw switch, and the like. The main switch unit 40 is disposed at a central position on the operation surface 14 , and the first switch module is 24 and the second switch module 34 are respectively disposed at two sides of the main switch unit 40, and each switch 90 of the first switch module 24 is connected to one end of the main switch unit 40 by the transmission line 60, Each switch 90 of the second switch module 34 is connected to the other end of the main switch unit 40 via the transmission line 60. By opening and closing the main switch unit 40, the connection between the first RF interface module 22 and the second RF interface module 32 can be disconnected and turned on, respectively.

When the main switch unit 40 is turned on, the connection between the first transfer unit 20 and the second transfer unit 30 is cut off, and the first transfer unit 20 and the second transfer unit 30 can operate independently of each other. Closing any two of the first switch module 24 or/and the second switch module 34, that is, the same or different two of the first transfer unit 20 or/and the second transfer unit 30 RF signal switching between the interfaces. For example, switching between male and female 84 of the same type interface is performed between any two different types of interfaces. The first switching unit 20 and the second switching unit 30 can also be simultaneously In use, the RF interface conversion device 100 can simultaneously transfer two RF signals without interference. Closing the main switch unit 40, and closing any one of the first switch module 24 and the second switch module 34, if the first switch unit 20 and the second switch are respectively turned on When the male interface 82 or the female 84 of the same type of interface is connected to the unit 30, the RF interface conversion device 100 can realize between the two males 82 of the same type interface or between the two females 84 or the public The transfer between the head 82 and the female head 84. It can be understood that the radio interface switching device 100 can implement switching between different types of interfaces if the different types of interfaces in the first switching unit 20 and the second switching unit 30 are respectively turned on.

The baffle 50 is made of a metal material such as copper, and is disposed between the first switch module 24 and the second switch module 34 in the housing 10, and the first RF interface module 22 and the second The RF signals of the RF interface module 32 are isolated to reduce mutual interference that may occur when the first RF interface module 22 and the second RF interface module 32 transmit RF signals simultaneously.

Referring to FIG. 2 and FIG. 3, in order to facilitate the description of the working principle of the RF interface conversion device 100, the switch 90 in the first switch module 24 shown in the figure is sequentially identified as S1~S6, and the second switch mode is selected. The switches in group 34 are sequentially labeled as S7~S12, the above-mentioned main switch unit 40 is labeled as S13, and the name of the radio frequency interface is indicated, and is not limited to the range of the radio interface to be marked.

When the main switch unit 40 is turned on and any two switches 90 of the first switch module 24 are closed, any two interfaces in the first transfer unit 20 are switched between. Similarly, the second switching unit 30 can also implement switching between any two interfaces. For example, opening S13 while closing S1 in the first switch module 24 S3, the circuit between SMA/MALE_1 and N/MALE_1 is turned on, and the switching between different types of interfaces can be realized; when S1 and S2 are closed at the same time, the circuit between SMA/MALE_1 and SMA/FEMALE_1 is turned on. The transfer between the male head 82 and the female head 84 of the same type interface can be realized. Similarly, if S7 and S10 in the second switch module 34 are simultaneously closed, the circuit between SMA/MALE_2 and N/FEMALE_2 is turned on, and the rotation between the male head 82 and the female head 84 of different types of interfaces is realized. Pick up. In addition, when the first switching unit 20 and the second switching unit 30 are simultaneously operated, the baffle 50 can play an isolation function, so that two RF signals can be independently and independently interfered with each other. The radio frequency interface conversion device 100 transmits.

When the main switch unit 40 is closed and simultaneously closing one of the first switch module 24 and the second switch module 34 to connect the switch 90 of the same type interface male 82 or female 84, then the first An adapter unit 20 and a second switching unit 30 can collectively implement signal switching between two males 82 or two females 84 of the same type of interface. For example, when S13, S4, and S10 are closed at the same time, N/FEMALE_1 and N/FEMALE_2 can be switched. It can be understood that when the main switch unit 40 is closed, the switch 90 of each type interface of the first switch module 24 and the second switch module 34 can be closed, so that the RF signals between different types of interfaces can be realized. Transfer. For example, by simultaneously closing S13, S3, and S12, RF signal transfer between N/MALE_1 and BNC/FEMALE_2 can be realized.

The radio frequency interface switching device 100 has a plurality of radio frequency interfaces embedded in the casing 10, and the different switches connected to the radio frequency interface by operating the first switch module 24, the second switch module 34, and the main switch unit 40. 90, the transfer between the same and different types of RF interfaces can be realized, so as to facilitate RF signal transmission. Therefore, the RF interface conversion The device 100 is convenient to use and has better flexibility, and meets the requirements of diversification of the radio frequency interface.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above-mentioned embodiments are only the embodiments of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be equivalently modified or changed in the spirit of the invention. It is included in the scope of the following patent application.

100‧‧‧RF interface converter

10‧‧‧shell

12‧‧‧ side

14‧‧‧Operation surface

40‧‧‧Main switch unit

82‧‧‧Male

84‧‧‧Female

90‧‧‧ switch

Claims (4)

An RF interface switching device includes a first switching unit and a second switching unit, wherein the first switching unit and the second switching unit have a plurality of radio frequency interfaces, and the improvement is: the first switching The unit includes a first RF interface module and a first switch module. The first RF interface module includes a plurality of RF interfaces. The first switch module includes a plurality of switches corresponding to the plurality of RF interfaces, and each RF interface is The second switch unit includes a second RF interface module and a second switch module, the second RF interface module includes a plurality of RF interfaces, and the second switch module includes a plurality of The switch corresponds to the plurality of radio frequency interfaces, and each radio frequency interface is connected to one end of the opposite switch; the radio frequency interface switching device further includes a main switch unit, and one end of the main switch unit and each switch of the first switching unit The other end is connected, the other end is connected to the other end of each switch of the second switching unit; when the main switch unit is open, the first switching unit and the second turn The unit operates independently. If the two switches of the first switch module and the second switch module are respectively closed, the first switching unit and the second switching unit correspond to the closed switch. Any two RF interfaces are mutually switched, and two RF signals are transmitted at the same time. The radio frequency interface switching device of claim 1, wherein when the main switch unit is turned on, if two of the first switch module or the second switch module are respectively closed, Two corresponding radio frequency interfaces in the first switching unit or the second switching unit are mutually transferred for transmitting one radio frequency signal. The radio frequency interface conversion device of claim 1, wherein the total When the switch unit is closed and one of the first switch module and the second switch module is respectively closed, one of the first switch modules corresponding to the closed switch and the second switch mode A corresponding RF interface in the group is mutually switched for transmitting one RF signal. The radio frequency interface conversion device of claim 1, wherein the radio frequency interface conversion device comprises a housing, the housing includes a plurality of sides and an operation surface perpendicular to each of the sides, the plurality of radio frequencies The interface is embedded in the side, the plurality of switches and the main switch unit are disposed on the operation surface, and the radio frequency interface device includes a baffle disposed in the housing, the baffle is located in the first switch module and the first Between the two switch modules.