KR20100068809A - Device for generating ultra-wide band(uwb) frequency, transceiver comprising the same device and method of generating uwb frequency using frequency division - Google Patents

Abstract

PURPOSE: A device for generating a UWB(Ultra-Wide Band) frequency, a transceiver comprising the same device and a method of generating a UWB frequency using frequency division are provided to increase an area efficiency. CONSTITUTION: A PLL(Phase Locked Loop) circuit(110) generates a source signal of a certain frequency, and a frequency dividing unit(120) comprises plural 2-dividers and one 3-divider. The frequency dividing unit generates sub-signals by dividing the source signal, and an SSB(Single Side Band) mixer unit(140) includes two SSB mixers. The SSB mixers receive the source signal and sub-signals, and generate UWB frequency signals.

Description

Device for generating ultra-wide band (UWB) frequency, transceiver comprising the same device and method of generating UWB frequency using frequency division}

The present invention relates to a wireless transceiver, and more particularly, to a broadband frequency generator used as a local oscillator in a wireless transceiver and a broadband frequency generating method thereof.

In general, an oscillator is an apparatus that generates an AC signal of a predetermined frequency, and is used in a wireless transceiver that transmits and receives a signal through a predetermined channel such as a mobile phone, a TV receiver, a wireless modem, and the like.

Conventionally, two phase locked loop (PLL) circuits are basically used to generate frequencies in the UWB mode 1 band having ultra-wide band frequencies, such as 3432, 3960, and 4488 MHz. As described above, since the conventional wideband frequency generator uses two PLL circuits, a larger area is required than when designing a single PLL circuit, and there is a disadvantage in terms of current consumption.

1 is a structural diagram of a conventional broadband frequency generator.

Referring to FIG. 1, a conventional broadband frequency generator includes two PLL circuits 10a and 10b, a two-divider 20, a four-divider 30, a filter 40, a frequency selector 50 and SSB (Single Side Band) mixer 60 is included.

The PLL circuits 10a and 10b detect the phase difference between the input signal and the output signal and control the phase of the output signal generator by a voltage proportional thereto, thereby making the phase of the output signal equal to the phase of the input signal. Although it includes a plurality of devices such as a reference frequency generator, a phase detector, a pulse voltage changer, and the like, only voltage controlled oscillators 12a and 12b (VCO) are shown, which enable output at a desired oscillation frequency through voltage application at an output terminal.

The two PLL circuits 10a and 10b each output a signal having a different frequency, the first PLL circuit 10a having a signal of 7.92 GHz frequency and the second PLL circuit 10b having a 2.112 GHz frequency. Output the signal. The signal output from the first PLL circuit 10a is divided into 3960 MHz by the two-divider 20, and the signal output from the second PLL circuit 10b is 528 MHz by the four-divider 30. Busy with The signal divided by the 2-divider 20 is input to the SSB mixer 60, and the signal divided by the 4-divider 30 is passed through the filter 40 and the frequency selector 50 to the SSB mixer ( 60). Here, two arrows are shown to indicate that the I and Q signals are transmitted separately.

The signals input to the SSB mixer 60 are properly subtracted and finally output as signals in the UWB mode 1 band with frequencies of 3432, 3960, and 4488 MHz.

The conventional broadband frequency generator having such a structure is complicated in area and implementation because it includes two PLL circuits, and the current consumption is large because two PLL circuits are used, and therefore, in terms of operating speed and power consumption. Is disadvantageous. In addition, in the case of any one of the PLL circuits above, generating a frequency signal of 7G or more, high precision is required to generate a high frequency of a certain frequency or more and to tune such a high frequency line. Furthermore, in order to divide these high frequencies, a relatively large amount of power is consumed in the divider.

The problem to be solved by the present invention is to solve the problems of the conventional broadband frequency generator, it can be implemented in a small area, the broadband power (UWB) frequency generator in terms of power consumption, a transceiver including the generator, and It is to provide a wideband (UWB) frequency generation method by frequency distribution.

In order to achieve the above object, the present invention is a PLL circuit for generating a source signal of a predetermined frequency; A divider unit having a plurality of two-dividers and one three-divider, for dividing the source signal to generate sub-signals; And an SSB mixer unit having two SSB mixers for receiving the source signal and the sub-signals to generate wide-band frequency signals through the addition and subtraction of the source signal and the sub-signals.

In the present invention, the two-divider is three, the sub-signals include the first to third sub-signals, the first sub-signal is the first two-divider and And a second two-divider is connected in series, and the second sub-signal is generated by the first two-divider, the third two-divider, and the three-divider in series. The third sub-signal may be generated by inputting the divided signal from the first two-divider and the second sub-signal to a first SSB mixer of the two SSB mixers. Meanwhile, the two-dividers are two, and the sub-signals include first to third sub-signals, and the first sub-signals include the first two-dividers and the second two-minutes of the two-dividers. A period is generated by connecting in series, and the second sub-signal is generated by connecting the first and second two-dividers and the three-divider in series, and the third sub-signal is generated by the first two. The divided signal from the divider and the second sub-signal may be generated by being input to a first SSB mixer of the two SSB mixers.

The broadband frequency generator further includes a mux for selecting and outputting the input signals for each frequency through a selection signal, wherein the first to third sub-signals are input to the mux, and the source signal and the mux An output signal may be input to a second SSB mixer of the SSB mixer to generate wideband frequency signals. For example, the source signal has a frequency of 3168 MHz, the first to third sub-signals have a frequency of 792 MHz, 264 MHz, and 1320 MHz, respectively, and the wideband frequency signals have a frequency of 3432 MHz, 3960 MHz, and 4488 MHz. It may be a one-band signal.

In the present invention, the two-divider is two, the sub-signals include first and second sub-signals, the first sub-signal is the first two-divider of the two two-dividers And a second two-divider connected in series, and the second sub-signal may be generated by connecting the first two-divider, the three-divider, a filter, and a frequency selector in series. In this configuration, the source signal and the first sub-signal are input to a first SSB mixer of the two SSB mixers to generate a first wideband frequency signal, and the second sub-signal and the first wideband frequency signal The second SSB mixer may be input to a second SSB mixer to generate second and third wideband frequency signals.

The present invention also provides a receiver for receiving a wideband frequency signal to achieve the above object; The broadband frequency generator; A signal processor for processing a signal received from the receiver, and generating a transmission signal using a broadband frequency signal generated from the broadband frequency generator; And a transmitter for transmitting the transmission signal.

Furthermore, in order to achieve the above object, the present invention comprises the steps of: generating a source signal of a predetermined frequency through a phase locked loop (PLL) circuit; Dividing the source signal into a plurality of sub-signals having different frequencies using at least one 2-divider, 3-divider and a first SSB mixer; And generating Ultra-Wide Band (UWB) frequency signals by adding and subtracting the source signal and the sub-signals to each other using a MUX circuit and a second SSB mixer. UWB) provides a frequency generation method.

On the other hand, the present invention, to achieve the above object, generating a source signal of a predetermined frequency through a phase locked loop (PLL) circuit; And generating ultra-wide band (UWB) frequency signals using at least one two-divider, three-divider, and single side band (SSB) mixer. ) Provides a frequency generation method.

In the present invention, the two-divider is two, the three-division period is one, the SSB mixer is two, and generating the ultra-wide band (UWB) frequency signals, the Dividing a source signal through the two dividers to generate a first sub-signal; Dividing the source signal through one of the two-dividers and the three-dividers, and passing a filter and a frequency selector to generate a second sub-signal having I and Q signals; Generating a first wideband frequency signal by inputting the source signal and the first sub-signal to a first SSB mixer of the two SSB mixers; And inputting the first wideband frequency signal and the second subsignal to a second mixer of the two SSB mixers to generate second and third wideband frequency signals.

The wideband (UWB) frequency generator according to the present invention, the transceiver including the generator, and the wideband (UWB) frequency generation method by frequency distribution are simple in design because they use only one PLL circuit and the area efficiency of the device is increased. It is possible to increase the power consumption and is excellent in terms of current consumption.

In addition, by generating and dividing a relatively low frequency signal through the PLL circuit, it is possible to relatively reduce the current consumed in the divider, and also reduce the current consumption in the SSB mixer.

Furthermore, since the present invention uses only two or three 2-dividers and one 3-divider, the present invention is simple in circuit and excellent in current consumption.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, when a component is described as being connected to another component, it may be directly connected to another component, but a third component may be interposed therebetween. In addition, in the drawings, the structure or size of each component is exaggerated for convenience and clarity of explanation, and parts irrelevant to the description are omitted. Like numbers refer to like elements in the figures. It is to be understood that the terminology used is for the purpose of describing the present invention only and is not used to limit the scope of the present invention.

2 is a structural diagram of a wideband frequency generator according to an embodiment of the present invention.

Referring to FIG. 2, the broadband frequency generator 100 of the present embodiment includes a PLL circuit 110, a divider unit 120 having two and three dividers, a mux 130, and two SSB mixers. It includes a SSB mixer 140 having a.

The PLL circuit 110 detects the phase difference between the input signal and the output signal and controls the phase of the output signal generator by a voltage proportional thereto, as mentioned in the prior art, thereby adjusting the phase of the output signal and the phase of the input signal. It is a circuit that equalizes. The PLL circuit 100 includes a plurality of elements such as a reference frequency generator, a phase detector, a pulse voltage changer, etc., but only the VCO 112 is shown for convenience. The VCO 112 functions to output the desired oscillation frequency through voltage application at the output terminal of the PLL circuit. The PLL circuit 110 of this embodiment outputs a signal having a frequency of 3168 MHz. Hereinafter, the signal output from the PLL circuit is referred to as a 'source signal'.

The divider unit 120 includes three two-dividers 122, 124, and 128 and one three-divider 126. The divider literally divides, or distributes, the input frequency. Such a divider may use a conventional divider such as a latch-type or a common mode logic (CML) type.

In this embodiment, the first two-dividers 122 and the second two-dividers 124 are connected in series to the PLL circuit 110 to generate a first sub-signal of 792 MHz. A mathematically simple calculation yields 3168/4 = 792 MHz. Meanwhile, the first two-dividers 122, the three-dividers 126, and the third two-dividers 128 are connected in series to the PLL circuit 110 to generate a second sub-signal of 264 MHz. . Again mathematically calculated, 3168/12 = 264 MHz. The order of the first two-dividers 122, the three-dividers 126, and the third two-dividers 128 connected in series may be changed. In other words, it is necessary to use only the frequency signal required among the output frequencies in each divider.

On the other hand, the output signal of the first two-divider 122, that is, the signal of 1584 MHz and the second sub-signal are input to the first SSB mixer 142 of the SSB mixer 140, so that the third sub-signal of 1320 MHz is received. Is generated. Calculated mathematically, 1584-256 = 1320 MHz. The first to third sub-signals generated as described above are input to the MUX 130 and sequentially input to the second SSB mixer 144 through the selection signal.

The SSB mixer unit 140 includes a first SSB mixer 142 and a second SSB mixer 144. As mentioned above, the first SSB mixer 142 is used to generate a third sub-signal. On the other hand, the second SSB mixer 144 is used to generate a substantial wideband frequency signal required by the wideband frequency generator.

The SSB mixer mixes two input signals to generate a sum signal and a difference signal for the frequencies of the two signals. Both sum and difference signals may be output, but generally only one signal may be output through an internal device such as a filter. In the case of the first SSB mixer 142, only the difference signal is output.

Meanwhile, signals sequentially input from the MUX 130 and a source signal of the PLL circuit 110 are input to the second SSB mixer 144 to generate wideband frequency signals, that is, signals of 3432, 3960, and 4488 MHz. . Formula 3168 + 264 = 3432 MHz, 3168 + 792 = 3960 MHz, and 3168 + 1320 = 4488 MHz can be seen that the formula. In addition, it can be seen that the second SSB mixer 144 outputs only the sum signal.

For reference, UWB communications use 14 bands with a 528 MHz bandwidth in the 3.1 to 10.6G frequency spectrum, with the 3432, 3960, and 4488 MHz frequencies being the center frequencies of the three bands most commonly used in UWB communications today. This is referred to as a UWB mode 1 band frequency. In the present embodiment, only the UWB mode 1 band frequencies are generated, but the higher band frequencies may be generated. For example, a 5016 MHz signal can be generated by combining the output signal of the 3-divider 126 with the current 4488 MHz signal.

Unlike the related art, the wideband frequency generator according to the present embodiment uses only one PLL circuit 110, thereby increasing area efficiency and significantly reducing power consumption. In addition, the generated signal also generates a frequency signal of 3168 MHz, which is relatively lower than the 7G band frequency, so that tuning is relatively easy and the current consumption of the first two-divider connected to the front of the PLL circuit can be relatively low. have.

3 is a structural diagram of a wideband frequency generator according to another embodiment of the present invention.

Referring to FIG. 3, the broadband frequency generator 100a according to the present embodiment includes a PLL circuit 110, a divider unit 120a having a two-divider and a three-divider similar to that of FIG. 2, and a mux. SSB mixer section 140 with 130 and two SSB mixers.

In the present embodiment, unlike the wideband frequency generator 100a of FIG. 2, the divider 120a is implemented by reducing the two-divider by one more. That is, the divider unit 120a includes a first 2-divider 122a, a second 2-divider 124a, and a 3-divider 126a connected to the PLL circuit 110 in series. Rather than connecting additional two-dividers for signal generation, the second two-dividers 124a are directly connected.

As a result, the first sub-signal is generated in the second two-divider 124a, and the second sub-signal is generated in the three-divider 126a, and the third sub-signal is generated in the first two-minute as in FIG. A period 122a and a three-divider 126a are input to the first SSB mixer 142 to generate it. The process of generating the wideband frequency signal by inputting the first to third sub-signals to the mux 130 and inputting the output and the source signal from the mux 130 to the second SSB mixer 144 is the same.

In the wideband frequency generator of this embodiment, by omitting one 2-divider in the divider, the area efficiency and power consumption efficiency can be further improved.

4 is a structural diagram of a wideband frequency generating device according to another embodiment of the present invention.

Referring to FIG. 4, the broadband frequency generator 100b of the present embodiment includes a divider unit 120b including a PLL circuit 110, a two-divider, a three-divider, a filter 125, and a frequency selector 129. And an SSB mixer section 140 having two SSB mixers. The broadband frequency generator 100b of this embodiment does not have a mux, unlike FIGS. 2 and 3.

Referring to the broadband frequency generation process, first, the divider 120b includes two two-dividers 122b and 124b, one three-divider 126b, a filter 125, and a frequency selector 129. do. The second two-dividers 124b and the three-dividers 126b are connected to the first two-dividers 122b connected to the PLL circuit 110, respectively. Accordingly, the first-second divider 122b outputs an output signal of 1584 MHz, and the second-second divider 124b outputs an output signal of 792 MHz, that is, a first sub-signal, and a three-divider ( 126b) generates an output signal of 528 MHz, that is, a second sub-signal.

The first and second sub-signals are input to the SSB mixer 140. That is, the first sub-signal and the source signal are input to the first SSB mixer 142 to generate a 3960 MHz first wideband frequency signal. On the other hand, the second sub-signal is separated into I and Q signals of the same frequency through the filter 125 is input to the frequency selector 129. The I (-528 MHz) signal and the Q (+528 MHz) signal are selectively input to the second SSB mixer 144 through the frequency selector 129. The I and Q signals from the frequency selector 129 and the first wideband frequency signal from the first SSB mixer 142 are input to the second SSB mixer 144 and thus, a second wideband frequency of 3432 MHz. Signal, and a third wideband frequency signal of 4488 MHz is generated.

For reference, FIGS. 2 to 4 are basically shown as a single signal, but basically all signals are differential signals, and the PPF receives the differential signal and the I (In-phase) and Q ( It converts into quadrature signals such as quadrature-phase signals. The filter 125 shown in FIG. 4 does just that. Meanwhile, although not shown in the drawings, the SSB mixer disclosed in the present invention is composed of two DSB (Double Side-Band) mixers, and each DSB mixer is composed of a Gilbert-double balanced mixer. Therefore, four LO signals (I, Ib, Q, Qb) and four RF signals (I, Ib, Q, Qb) must be present for the SSB to be driven, so the signal coming into the SSB input becomes a quadrature signal. Can be. This SSB topology is mainly used because it is effective in producing a single sideband signal.

The broadband frequency generator 100b of the present embodiment may have an advantage of further improving the size and current consumption efficiency of the circuit by omitting the mux.

On the other hand, filters for extracting only the frequency signal required in the broadband frequency generators 100, 100a, 100b of Figures 2 to 4 may be connected to the input and output terminals of each component. For example, in FIG. 2, a poly phase filter (PPF) may be connected to an input terminal of the first SSB mixer 142 or an input terminal of the second SSB mixer 144.

5 is a structural diagram of a transceiver including the wideband frequency generator of FIGS. 2 to 4 according to another embodiment of the present invention.

Referring to FIG. 5, the transceiver of this embodiment includes a receiver 200, a signal processor 300, a transmitter 400, and a broadband frequency generator 100. The receiver 200 receives a signal, and the transmitter 300 transmits a transmission signal. In general, the receiver and the transmitter may be implemented as one interface module. The signal processor 300 processes a signal received from the receiver 200 and performs various functions such as generating a transmission signal using a wideband frequency signal generated from the wideband frequency generator. The wideband frequency generator 100 generates a wideband frequency signal, which may be any one of the wideband frequency generators described above with reference to FIGS. 2 to 4.

The transceiver according to the present embodiment employs a wideband frequency generator as described with reference to FIGS. 2 to 4, thereby improving the integration degree of the transceiver and further reducing power consumption. On the other hand, the transceiver of the present embodiment may be any electronic device capable of performing UWB communication, such as a mobile phone, a TV receiver, a wireless modem.

FIG. 6 is a flowchart illustrating a method for generating a wideband (UWB) frequency by frequency distribution according to another embodiment of the present invention, which will be described with reference to FIGS. 2 and 3 for convenience of understanding.

Referring to FIG. 6, in the wideband frequency generation method by frequency division of the present embodiment, first, a source signal is generated through the PLL circuit 110 (S100). Next, sub-signals are generated using a divider and an SSB mixer. For example, referring to FIG. 2, a first sub-signal is generated using the first and second two-dividers 122 and 124, and the first and third two-dividers and the three-dividers 122, 126 and 128 are used to generate a second sub-signal, and the first sub-divider 122 and the second sub-signal are input to the first SSB mixer 142 to generate a third sub-signal. Meanwhile, in the case of the wideband frequency generator of FIG. 3, one second divider is omitted and a first sub-signal is immediately generated by the second divider 126.

Next, a wideband frequency signal is generated using the MUX and the SSB mixer (S130). That is, the first to third sub-signals are input to the mux 130, and the signals and the source signals output from the mux 30 through the selection signal are input to the second SSB mixer to provide a wide bandwidth of 3432, 3960, and 4488 MHz. Frequency signals are generated.

FIG. 7 is a flowchart illustrating a method for generating a wideband (UWB) frequency by frequency distribution according to another embodiment of the present invention, which will be described with reference to FIG. 4 for convenience of understanding.

Referring to FIG. 7, the method for generating a wideband frequency by frequency distribution according to the present embodiment first generates a source signal through the PLL circuit 110 (S200). Next, the first sub-signal is generated using two 2-dividers (S120). That is, a first sub-signal is generated by using the first two-dividers 122b and the second two-dividers 124b connected in series.

Next, a second sub-signal is generated using the first two-dividers 122b, the three-dividers 126b, the filter 125, and the frequency selector 129 (S220). Here, the second sub-signal includes the I and Q signals as described above. The first sub-signal and the second sub-signal may be generated simultaneously. next. The first sub-signal and the source signal are input to the first SSB mixer 142 to generate a 3960 MHz first wideband frequency signal (S230). In addition, the first wideband frequency signal and the second sub-signal are input to the second SSB mixer 144 to generate wideband frequency signals of 3432 MHz and 4488 MHz.

So far, the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. . Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1 is a structural diagram of a conventional broadband frequency generator.

2 is a structural diagram of a wideband frequency generator according to an embodiment of the present invention.

3 is a structural diagram of a wideband frequency generator according to another embodiment of the present invention.

4 is a structural diagram of a wideband frequency generating device according to another embodiment of the present invention.

5 is a structural diagram of a transceiver including the wideband frequency generator of FIGS. 2 to 4 according to another embodiment of the present invention.

6 is a flowchart illustrating a method for generating wideband (UWB) frequency by frequency distribution according to another embodiment of the present invention.

7 is a flowchart illustrating a method for generating wideband (UWB) frequency by frequency distribution according to another embodiment of the present invention.

Claims (19)

A PLL circuit for generating a source signal of a predetermined frequency; A divider unit having a plurality of two-dividers and one three-divider, for dividing the source signal to generate sub-signals; And an SSB mixer unit having two SSB mixers for receiving the source signal and the sub-signals to generate wideband frequency signals through the subtraction and subtraction. According to claim 1, The two dividers are three, and the sub-signals include first to third sub-signals, The first sub-signal is generated by connecting a first 2-divider and a second 2-divider in series of three 2-dividers, The second sub-signal is generated by connecting the first 2-divider, the third 2-divider and the 3-divider in series of three 2-dividers, And the third sub-signal is generated by inputting a divided signal from the first two-divider and the second sub-signal to a first SSB mixer of the two SSB mixers. According to claim 1, The two dividers are two, and the sub-signals include first to third sub-signals, The first sub-signal is generated by connecting a first 2-divider and a second 2-divider in series of the 2-dividers, The second sub-signal is generated by connecting the first and second two-dividers and the three-dividers in series. And the third sub-signal is generated by inputting a divided signal from the first two-divider and the second sub-signal to a first SSB mixer of the two SSB mixers. The method according to claim 2 or 3, The broadband frequency generator further includes a mux for selecting and outputting the input signals for each frequency through a selection signal, The first to third sub-signals are input to the mux, And a wideband frequency signal is generated by inputting the source signal and the output signal from the mux to a second SSB mixer of the SSB mixer. 5. The method of claim 4, The source signal has a frequency of 3168 MHz, The first to third sub-signals have a frequency of 792 MHz, 264 MHz, and 1320 MHz, respectively. And the wideband frequency signals are UWB mode 1 band signals having frequencies of 3432 MHz, 3960 MHz, and 4488 MHz. According to claim 1, The two-divider is two, and the sub-signals include first and second sub-signals, The first sub-signal is generated by connecting a first 2-divider and a second 2-divider in series of two 2-dividers, And the second sub-signal is generated by connecting the first two-divider, the three-divider, a filter, and a frequency selector in series. The method according to claim 6, The source signal and the first sub-signal are input to a first SSB mixer of the two SSB mixers to generate a first wideband frequency signal. The second sub-signal includes I and Q signals separated through the filter,  I and Q signals selected by the frequency selector and the first wideband frequency signal are input to a second SSB mixer of the two SSB mixers to generate second and third wideband frequency signals. Device. The method of claim 7, wherein The source signal has a frequency of 3168 MHz, The first and second sub-signals have a frequency of 792 MHz and 528 MHz, respectively. And the first to third wideband frequency signals are UWB mode 1 band signals having frequencies of 3960 MHz, 3432 MHz, and 4488 MHz, respectively. According to claim 1, The broadband frequency generator is And band pass filters for band-passing the output signal from the dividers or the SSB mixer. A receiver for receiving a wideband frequency signal; A wideband frequency generator having a PLL circuit, a divider unit and an SSB mixer unit; A signal processor for processing a signal received from the receiver and generating a transmission signal using a wideband frequency signal generated from the wideband frequency generator; And Includes; transmitting unit for transmitting the transmission signal, The wideband frequency generator generates a wideband frequency through a plurality of two-dividers and three-dividers in the divider section and two SSB mixers in the SSB mixer section based on the source signal from the PLL circuit. Transceiver. The method of claim 10, The divider includes three or less two-dividers and one three-divider to divide the source signal to generate sub-signals, And the SSB mixer unit receives the source signal and the sub-signals to generate the wideband frequency signals which are UWB mode 1 band signals having frequencies of 3432 MHz, 3960 MHz, and 4488 MHz. Generating a source signal of a predetermined frequency through a phase locked loop (PLL) circuit; Dividing the source signal into a plurality of sub-signals having different frequencies using at least one 2-divider, 3-divider and a first SSB mixer; And Generating an ultra-wide band (UWB) frequency signals by adding and subtracting the source signal and the sub-signals to each other using a MUX circuit and a second SSB mixer; Frequency generation method. The method of claim 12, If the two-divider is two, A first sub-signal of the sub-signals is generated by connecting two 2-dividers in series with the PLL, A second sub-signal of the sub-signals is generated by connecting the 3-divider in series to the two 2-dividers connected in series, And a third sub-signal of the sub-signals is a difference signal between a signal from a 2-divider in front of the two 2-dividers and the third sub-signal. The method of claim 12, When the two-divider is three, A first sub-signal of the sub-signals is generated by connecting two 2-dividers in series with the PLL, A second sub-signal of the sub-signals is generated by connecting a 3-divider and another 2-divider in series to a 2-divider of the preceding stage among the two 2-dividers connected in series, And a third sub-signal of the sub-signals is a difference signal between the signal from the 2-divider of the front end and the third sub-signal. The method according to claim 13 or 14, The source signal has a frequency of 3168 MHz, The sub-signals include a first sub-signal of 792 MHz, a second sub-signal of 264 MHz, and a third sub-signal of 1320 MHz. The method of claim 15, The source signal is input to the second SSB mixer, The first to third sub-signals are input to the MUX and then selectively output to the second SSB mixer by a selection signal. And the output signal of the MUX and the source signal are added or subtracted in the second SSB mixer to generate a UWB mode 1 band frequency having 3432 MHz, 3960 MHz, and 4488 MHz. Generating a source signal of a predetermined frequency through a phase locked loop (PLL) circuit; And Generating ultra-wide band (UWB) frequency signals using at least one 2-divider, 3-divider and Single Side Band (SSB) mixer; Frequency generation method. 18. The method of claim 17, The two-divider is two, the three-minute period is one, the SSB mixer is two, Generating the ultra-wide band (UWB) frequency signals, Dividing the source signal through two two-dividers to generate a first sub-signal; Dividing the source signal through one of the two-dividers and the three-dividers, and passing a filter and a frequency selector to generate a second sub-signal having I and Q signals; Generating a first wideband frequency signal by inputting the source signal and the first sub-signal to a first SSB mixer of the two SSB mixers; Inputting the first wideband frequency signal and the second sub-signal to a second mixer of the two SSB mixers to generate second and third wideband frequency signals; How to create. 19. The method of claim 18, The source signal has a frequency of 3168 MHz, the first sub-signal has a frequency of 792 MHz, the first wideband frequency signal has a frequency of 3960 MHz, the second sub-signal has a frequency of 528 MHz, and the second and And the third wideband frequency signal has a frequency of 3432 MHz and 4488 MHz, respectively.

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