KR101639530B1 - A hybrid IC without electricity for wireless communication for RF emission monitoring - Google Patents

Abstract

Disclosed is a no power hybrid integrated circuit (IC) for wireless communication for radio frequency (RF) emission monitoring, installed on an RF transmission path, including a directional coupler and an RF detection circuit unit. The directional coupler is installed between an RF input end and an RF output end, to be reachable through signals, thereby outputting RF signals, received by the RF input end, into both a first path and a second path separately, wherein the first path is configured to output the RF signlas towards the RF output end and the second path is different from the first path. The RF detection circuit unit converts the RF signals, received through the second path divaricated from the directional coupler, into voltage by using a diode and capacitor and operates LEDs using the converted voltage. Therefore, by using the present invention, whether RF signals are emitted normally or not can be checked intuitively and constantly through LEDs even without separate external power.

Description

[0001] The present invention relates to a wireless IC for wireless communication,

The present invention relates to a non-power-supply hybrid IC (Integrated Circuit) for wireless communication for monitoring RF radiation, and more particularly, to an integrated circuit And more particularly, to a non-powered hybrid IC for wireless communication for monitoring RF radiation.

Generally, as a method for checking whether a signal is normally radiated in a wireless communication system and a wireless communication module, a part of an output signal is coupled using a directional coupler at the end of a system equipment or a module , And a method of confirming using an external signal measuring instrument connected thereto through a separate port was mainly used. Another method is to check whether the output signal is normal or not via a graphical user interface (GUI) by connecting a notebook or a separate terminal with a program to a communication port applied to the system equipment or module.

However, the above-mentioned methods have a problem in that they must be connected by connecting a measuring instrument, a notebook or a separate terminal. Also, when the system equipment or the module is installed in the field, there is a problem that sometimes it is difficult to directly connect the measuring device or the terminal depending on the installation environment or the situation.

Therefore, there is a growing interest in studies to confirm whether RF signals are radiated intuitively without a separate measuring device or terminal.

On the other hand, since the distributor has a coupling terminal, the coupling signal is connected to the coupling terminal, and the coupling terminal is connected to a separate measuring device, so that it is possible to measure each part without disassembling the distributor during network testing And a coupling terminal for providing an LED circuit element illuminated by a signal induced by the input line so as to intuitively grasp whether a normal signal flows through the input line is disclosed in Korean Patent Publication No. 10-2005- 0108972.

However, the prior art has an advantage that it can intuitively confirm whether a radio wave flows normally through an LED, but there is a limit to be applied only to a distributor. That is, the distributor is a device which is mainly used in a relay network and receives a single signal, separates the signal into a plurality of signals, outputs the signals, and distributes the signals to a plurality of devices. However, Therefore, there is a problem that it is difficult to apply to other wireless communication devices, devices or modules other than the distributor.

In the above prior art, only 'LED circuit elements' are used to light an LED using a radio wave signal. Specifically, the method of driving an LED using a radio wave signal in any method and configuration is described in detail I wonder if it is feasible.

In addition, since a distributor of the prior art has a printed circuit board (PCB) installed inside the case and various input / output lines, coupling circuits, distribution circuits, LED circuit elements, etc. are applied to the printed circuit board, There is a problem that it takes a lot of production cost.

Korean Patent Publication No. 10-2005-0108972 (published on Nov. 17, 2005)

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a wireless communication device and a wireless communication method that are applicable to all wireless communication devices and modules using RF signals, The present invention aims to provide a wireless IC communication-free hybrid IC for RF radiation monitoring, which enables intuitive identification and monitoring, and enables more compact design and implementation of wireless communication equipment and modules.

In order to accomplish the above object, the present invention provides a non-powered hybrid IC for radio communication monitoring for RF radiation, which is installed on an RF transmission path and performs RF monitoring, A directional coupler installed separately from the first path for outputting an RF signal received from the RF input terminal to the RF output terminal and a second path different from the first path; And an RF detection circuit section for converting an RF signal received through the second path branched from the directional coupler into a voltage using a diode and a capacitor, and driving the LED with the converted voltage.

Also, a non-power-source hybrid IC for wireless communication for RF emission monitoring according to the present invention includes: a distributor installed to be able to connect signals between the directional coupler and the RF detection circuit; And an RF monitoring port to which an external signal measuring device is connected, wherein the distributor comprises: a third path for outputting an RF signal received through the second path to the RF detection circuit section; As shown in FIG.

The RF detection circuit includes a first capacitor connected to an RF input terminal, a first diode connected between the first capacitor and the ground terminal, a second diode connected to the first capacitor to be connected in series with the first diode, And a second capacitor connected between the second diode and the ground terminal to drive the LED with a charged voltage.

According to the present invention, the LED may be directly installed in the wireless communication non-powered hybrid IC, or may be connected to the LED terminal formed in the wireless communication non-powered hybrid IC.

According to the present invention, it is possible to intuitively and continuously check whether the RF signal is normally radiated through the LEDs without supplying external power, and it is possible to use a separate monitoring device such as a monitoring port method using a coupler or a separate communication port It is possible to solve the troublesome necessity of confirming only by directly connecting the terminals, which is effective in reducing the maintenance convenience and maintenance cost.

In addition, since the coupler, which has been used in the conventional monitoring method, is directly implemented in the IC of the present invention, it can be designed and implemented more compactly in designing the wireless communication equipment and module, resulting in cost reduction and diversity and ease of application There is an effect.

In addition, it is applied to all wireless communication products (equipment or module) using RF signal as an IC, that is, it can be intuitively monitored by using LED without power supply, so that cost reduction and product reliability are ensured. There is an effect that can be done.

FIG. 1 is a block diagram of a non-power-source hybrid IC for wireless communication for monitoring RF radiation according to an embodiment of the present invention.
FIG. 2 is a block diagram of a non-powered hybrid IC for wireless communication for monitoring RF radiation according to another embodiment of the present invention.
3 is a circuit configuration diagram of the RF detection circuit unit according to the embodiment of the present invention,
FIG. 4 is a circuit diagram of the RF detection circuit of FIG. 3, and is an equivalent circuit diagram when the RF signal is negative (left) and when the RF signal is positive. FIG.

These and other objects, features and other advantages of the present invention will become more apparent by describing in detail preferred embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a hybrid non-power IC for wireless communication for RF radiation monitoring according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The hybrid non-power-supply IC 100 for radio frequency (RF) monitoring according to an embodiment of the present invention is installed on an RF transmission path to perform RF emission monitoring. Referring to FIG. 1, a directional coupler 120 A splitter 140, and an RF detection circuit unit 160.

The non-powered hybrid IC 100 for wireless communication according to the present invention can be understood as an electronic component concept applied to all wireless communication RF products (equipment or modules), that is, a repeater, a base station, various broadcast and communication equipment, It can be applied to RF products such as various RF modules and RF passive devices to operate without a separate external power source, so that it can be monitored whether or not the RF is radiated normally.

A directional coupler 120 is provided between the RF input terminal and the RF output terminal so as to be connected to the RF output terminal. The directional coupler 120 includes a first path for outputting an RF signal received from an RF input terminal to an RF output terminal, And outputs the divided signal to the second path.

Here, the meaning of 'path' can be understood to mean a line of an RF signal. Further, the RF input terminal and the RF output terminal serve as a path for inputting and outputting RF signals to the non-powered hybrid IC 100 for wireless communication according to the present invention, and can be understood as a terminal, a port, or a connection point.

The functions and configurations of the directional coupler 120 are well known to those of ordinary skill in the art to which the present invention pertains, so a detailed description thereof will be omitted.

The distributor 140 distributes the signal coupled by the directional coupler 120 to a third path that outputs the signal coupled to the RF detection circuit unit 160 and a fourth path that outputs the signal to the RF monitoring port 150. The functions and configurations of the distributor are well known to those skilled in the art, and therefore, detailed description thereof will be omitted.

The RF detection circuit unit 160 converts an RF signal, which is distributed in the distributor 140, received through the third path, to a voltage using a diode, and drives the LED 180 with the converted voltage. Therefore, when the RF signal is normally radiated, the LED is turned on, and if not, the LED is turned off.

1, the LED 180 that is turned on by the converted voltage to the RF detection circuit unit 160 is connected to the RF detection circuit unit 160 through the LED terminal 170 formed on the outer side of the wireless communication non- Or as shown in FIG. 2, the LED 180 may be directly installed in the wireless communication non-powered hybrid IC 100 and driven.

FIG. 3 is a detailed circuit diagram of the RF detection circuit unit 160. FIG. 4 is a circuit diagram of the RF detection circuit unit of FIG. 3. When the RF signal is negative (left) (Positive), respectively.

The RF detection circuit unit 160 is basically composed of two diodes D1 and D2 and two capacitors C1 and C2. Two diodes are connected in series and the forward current flows from the RF input to the Vout output. The first capacitor C1 prevents DC current from flowing into the circuit and allows the flow of RF signals. The second capacitor C2 charges the electric charge flowing to the output voltage Vout. The circuit basically functions as a DC-level shifter in a charge pump structure in which the first capacitor C1 and the first diode D1 serve as a DC-level shifter, and the second capacitor C2 and the second The diode D2 serves as a peak detector.

If the RF signal is negative and greater than the turn-on voltage of the first diode D1, the flow of current flows through the first diode D1 at ground, The charge is charged. The equivalent circuit of the portion corresponding to the sound of the RF signal is as shown in the left side of Fig. At the negative peak, a voltage is applied to the first capacitor C1 by the difference between the negative peak voltage and the turn-on voltage of the diode. As a result, the DC level of the signal applied to the peak detector (the second capacitor C2 and the second diode D2) is the difference between the negative maximum voltage and the turn-on voltage of the diode, 1].

here,

: DC 레벨 쉬프터 전압

: DC level shifter voltage

: 첨두전압

: Peak voltage

: 다이오드 턴-온 전압

: Diode turn-on voltage

If the RF signal is positive and greater than the turn-on voltage of the second diode D2, the second diode D2 is turned on and the first diode D2 is turned on, D1 are turned off. Thus, the current passing through the first capacitor C1 is charged to the second capacitor C2 through the second diode D2. The equivalent circuit of the portion corresponding to the amount of the RF cycle is as shown in the right side of FIG. 4, and the output voltage across the second capacitor C2 that drives the LED is calculated as shown in the following equation (2).

here,

: 출력전압

: Output voltage

As described above, according to the present invention, since the RF signal is converted into the voltage by the RF detection circuit unit 160 and the LED is driven, whether the RF signal is normally radiated without supplying external power is continuously There is an advantage that it can be intuitively checked easily.

An external signal measuring device 200 is connected to the RF monitoring port 150 to measure the intensity of the RF signal.

In the embodiment of the present invention, the distributor 140 is provided between the directional coupler 120 and the RF detection circuit unit 160, but the scope of the present invention is not limited thereto. That is, the distributor 140 is omitted and the RF detection circuit unit 160 directly receives the RF signal coupled from the directional coupler 120 to drive the LED 180. However, in addition to intuitively and easily confirming that the RF signal is radiated, it is also necessary to measure the RF signal intensity, and thus it is preferable that the distributor 140 is installed as in the embodiment of the present invention.

The signal path according to the present invention having such a structure will now be described.

First, the transmission path of the RF signal is transmitted from the RF input terminal to the RF output terminal via the directional coupler 120. Therefore, there is an advantage that the transmission line of the RF signal is minimized, so that the transmission line loss can be minimized.

On the other hand, in the case of the LED monitoring path, the RF input terminal, the directional coupler 120, the distributor 140, the RF detection circuit unit 160,

In the case of the RF signal measurement monitoring path, the RF input terminal, the directional coupler 120, the distributor 140, and the RF monitoring port 150 are transmitted in this order.

As described above, according to the non-power-source hybrid IC for wireless communication according to the present invention, an RF signal is separated and output using a coupler, an RF detection circuit part using a diode and a capacitor in one path, The RF signal is converted into a voltage, the LED is driven by the RF signal, and the RF signaling port is implemented in the remaining path. Thus, the output intensity of the RF signal can be checked using an external signal measuring device.

Therefore, in order to confirm whether or not the conventional RF signal is radiated normally, it is possible to solve the troubles that it is necessary to confirm only by directly connecting the measuring device, such as a monitoring port method using a coupler or a method using a separate communication port The maintenance convenience and the maintenance cost can be reduced.

In addition, since the coupler, which has been used in the conventional monitoring method, is directly implemented in the IC of the present invention, it can be designed and implemented more compactly in designing the wireless communication equipment and module, resulting in cost reduction and diversity and ease of application There is an effect.

In addition, it can be applied to all wireless communication products (equipment or module) using RF signal as a single part, so it can be intuitively monitored by using LED without power supply, so that cost reduction and product reliability can be secured It is effective.

Although the preferred embodiments of the present invention have been described, the present invention is not limited to the specific embodiments described above. It will be apparent to those skilled in the art that numerous modifications and variations can be made in the present invention without departing from the spirit or scope of the appended claims. And equivalents should also be considered to be within the scope of the present invention.

100. Non-powered hybrid IC for wireless communication 120. Directional coupler
140. Dispenser 150. RF monitoring port
160. RF detection circuit section 170. LED port
180. LED 200. External signal measuring device

Claims (4)

The present invention relates to a non-powered hybrid IC installed on an RF transmission path,
A first path for outputting an RF signal received from the RF input terminal to the RF output terminal and a second path for outputting a second path different from the first path so as to be connectable between an RF input terminal and an RF output terminal, A second coupler; And
A distributor connected to the directional coupler to divide the RF signal received through the second path into a fourth path different from the third path and the third path and output the RF signal;
An RF detection circuit part for converting an RF signal received through the third path branched from the distributor into a voltage using a diode and a capacitor and driving the LED with the converted voltage; And
And an RF monitoring port for receiving an RF signal through the fourth path branched from the distributor and connected to an external signal measuring device,
The RF detection circuit unit includes a first capacitor connected to the RF input terminal, a first diode connected between the first capacitor and the ground terminal, a second diode connected to the first capacitor to be connected in series with the first diode, And a second capacitor connected between the second diode and the ground terminal to drive the LED with a charged voltage,
And the RF detection circuit unit is not provided with a resistor for limiting a current applied to the LED.
delete delete The method according to claim 1,
Wherein the LED is directly installed in the wireless communication non-powered hybrid IC, or is driven by being connected to an LED terminal formed in the wireless communication non-powered hybrid IC.

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