KR100278292B1 - Power amplifier with layout of divider and coupler external connection and layout method - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

A power amplifier having a splitter and a coupler external connection structure and a layout method thereof.

2. The problem to be solved by the invention

The RF input signal source to be amplified is divided into the same signal level at the input stage of the power amplification circuit. Therefore, the present invention provides a power amplifier having a splitter and coupler external connection structure and its design method to obtain high output power and high output gain efficiency.

3. Summary of Solution to Invention

By employing a structure that externally combines the signals amplified in each amplification circuit, by adopting a structure for distributing the input signal of the power amplifier, which is the output signal of the driving amplifier, to easily obtain the input signal more than twice. To provide a design method with high output gain and very high output gain efficiency.

4. Important uses of the invention

It can be used as a power amplifier for RF transmitter / receiver of IMT-2000 terminal.

Description

Power amplifier with layout of divider and coupler external connection and layout method

The present invention provides a mobile communication terminal for a next generation mobile communication system (International Mobile Telecommunication-2000; "IMT-2000") or Future Public Land Mobile Telecommunication System (hereinafter, "FPLMTS"). The present invention relates to a power amplifier, which is an output terminal of a wireless transmitter. In particular, a power amplifier having a divider structure and a structure for connecting a coupler outside the amplifier are combined to maximize output power and output efficiency. The present invention relates to a power amplifier and a layout method thereof for connecting a transmission line coupler having a minimum value.

In general, the power amplifier for portable communication should have characteristics that can produce a high amplification gain efficiency and output power for the input RF signal. In addition, small size and light weight should be applied to mobile phones. On the other hand, when amplifying an RF signal, if the harmonic component is large in the characteristic of the power amplifier, the harmonic distortion and the adjacent channel interference due to out-of-band radiation are large, so the harmonic component becomes a very important parameter.

In addition, since the power amplifier consumes the highest power among components constituting the RF transceiver, the amplification efficiency of the power amplifier directly affects the time when the terminal can be used with a single charge. In addition, since the output power and amplification gain efficiency have different characteristics, they should be optimized and designed to satisfy both of these parameter characteristics.

On the other hand, conventional power amplifiers for mobile phones (PCS) (1.7 to 1.9 GHz band) are generally used commercial components with low output power (250 to 300 mW) and low output gain efficiency (25 to 30%). Therefore, there is a demand for a power amplifier having high output power and high output gain efficiency, which can prolong the talk time and efficiently use the supplied power.

The present invention has been made to solve the conventional problems as described above, to provide a power amplifier having a splitter and a coupler external connection structure that efficiently uses the power supplied and has high output power and high output gain efficiency. The purpose is.

In addition, another object of the present invention is to distribute the input signal so that more than twice the power can be amplified without loss, and by configuring the output amplifier circuit in parallel structure the amplified output signal has a high output power and high output gain efficiency A divider is provided at the input of the power amplifier, and a lossless connection structure designed by a resistor, which is a transmission line and a lumped element, which amplifies the amplified output signal of the power amplifier circuit configured in a parallel structure, It is an object of the present invention to provide a power amplifier having a high output gain and a high output gain efficiency and a power amplifier having an external connection structure and a layout method.

1 is a diagram illustrating an embodiment of a power amplifier having an external connection structure of a divider and a combiner according to the present invention.

2A is an input / output characteristic diagram of a power amplifier using a conventional feedback method.

2b is an input / output characteristic diagram of a power amplifier having a splitter and a coupler external connection structure according to the present invention;

Explanation of symbols on the main parts of the drawings

11, 12: input power divider,

13, 14, 15, 16: amplifiers for distributed input power,

17: output power coupler external connection pad,

C11, C12: capacitor,

L11, L12, L21, L22: inductor,

R11 to R14, R _L : resistance,

ST11, ST12, ST21, ST22, WTML11 to WTML19: transmission line,

TML11, TML13, TML23, WTML11: designed Transmission line

TML13, TML17: designed Transmission line

TML14: Designed Transmission line

TML16, WTML12: Designed Transmission line

WTML11 to WTML19: Transmission Line

In order to achieve the above object, the power amplifier having a splitter and coupler external connection structure according to the present invention, the RF input port as an input terminal; Input power distribution means for distributing one input signal applied from the outside through the RF input port into a plurality of signals having substantially the same magnitude; A plurality of amplifying means for distributing and amplifying desired power by amplifying a plurality of input signals distributed by the distributing means in parallel, respectively; And output power combining means for combining and outputting a plurality of signals amplified by the plurality of amplifying means.

According to another aspect of the present invention, there is provided a power amplifier layout method having an external connection structure of a divider and a combiner, the apparatus comprising: receiving an input signal from an external device through an RF input port; Distributing the received one input signal into a plurality of signals having substantially the same magnitude through a plurality of input power distribution means and outputting the same; Distributing and amplifying desired power by amplifying the plurality of input signals distributed by the distributing means, respectively, in parallel by the plurality of amplifying means; And output power combining means for combining a plurality of signals amplified by the plurality of amplifying means.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art may easily implement the technical idea of the present invention. do. In the drawings, the same reference numerals are used for the same components as in the prior art.

First, in the preferred embodiment of the present invention, two splitters are formed at the input terminal to satisfy the terminal output for the IMT-2000, and four field effect transistors (FETs) are connected in parallel to the amplifier ( a lossless coupler designed using a transmission line and a lumped element (resistor), which are a coupler structure for connecting these output powers externally, to the output stage of the amplifier, thereby providing a large output power and high output gain efficiency. Design to get

For example, as a preferable example of the present invention, a FET (library element of GEC-Marconi, UK) having a gate width of 900 μm may be used, and the present invention focuses on an output power port of a power amplifier using such a FET. A transmission line coupler was connected externally and the output power and output gain efficiency were measured. As a result, a power amplifier with an output of about 570 mW and an efficiency of about 41% was obtained. This results in an improvement of about 87 mW and about 4.0% in output power and efficiency, respectively, compared to the output stage using an ideal Wilkinson coupler.

Meanwhile, the above power amplifier should be applied to the terminal for IMT-2000, so its volume should be minimized. Accordingly, in the present invention, the input stage divider of the power amplifier may be implemented by MMIC (Monolithic Microwave Integrated Circuits), but the output stage is a circuit for combining the output signal of the output port having a parallel structure, which is very large and may be implemented as an MMIC chip. Since it is not possible, a coupler was constructed using a transmission line and a lumped element.

1 is a diagram illustrating an embodiment of a power amplifier having an external connection structure of a divider and a combiner according to the present invention.

As shown in FIG. 1, the entire power amplifier configuration includes a driving amplifier (not shown: the front end of the power amplifier in the terminal) inputted to the input port 1 and the input port 2 of the input power dividers 11 and 12. Connected to the output signal).

As shown in the figure, the power amplifier having a divider and coupler external connection structure of the present invention and a layout method thereof receive an output signal of a driving amplifier (not shown), which is a front end, and is separated into two signals without input loss. The first and second input power dividers 11 and 12 and output terminals of the first input power divider 11, respectively, and use an active element (for example, a FET having a gate width of 900 μm). First and second amplifiers 13 and 14 which provide optimized amplified signals and an output terminal of the second input power divider 12, respectively, and an active element (e.g., a FET having a gate width of 900 mu m) Third and fourth amplifiers 15 and 16 for providing an optimized amplified signal, and input terminals thereof are respectively connected to output terminals of the first to fourth amplifiers to externally output the output signals amplified by the respective amplifiers. Connector And has an output power combiner 17 is output from the lossless coupler connection.

The input power dividers 11 and 12 distribute the RF (Radio Frequency) signals input through the respective input ports and output the input signal power, so that each of the amplifiers 13, 14, 15, and 16 having a parallel structure is provided. It is applied to the input terminal as input signal power to be amplified. In this case, the input power dividers 11 and 12 distribute the RF signals output from the driving amplifiers (not shown) of the preceding stage to the same size and to a plurality (two or more). In addition, the RF signal output from each of the amplifiers (13 to 16 of FIG. 1) is input to the output power combiner 17 of the external connection structure and finally coupled to the output power.

11 and 12 of FIG. 1 are input power dividers, and as shown in the drawing, the input power dividers 11 and 12 of FIG. 1 are connected to a signal input terminal via an RF pad to receive a signal applied from the outside. And first and second capacitors C11 and C12 for blocking a DC voltage component of a signal applied to the signal input terminal, and connecting the signal input terminal to the first capacitor C11 and the second capacitor C12. First uja (to do ) A transmission line (TML11) and a lexical word for branching one signal input input through the signal input terminal into two signals ( A first inductor L11 connected to a second output side of the) -type transmission line TML14 and matching a branched radio frequency (RF) signal, and a second woofer connected between the first inductor L11 and the first output terminal (L1). ) First transmission line (TML13) and the first typo (") connected between the second inductor L12 and the second output terminal. ) Transmission line (TML16) and the second right ( ) Transmission line (TML13) and the first typo ( Resistor R11 for matching) transmission line TML16, input / output terminals of the elements, and the first and second ) Transmission line said first misspell ( ) Multiple transmission lines provided with each of the simplified transmission lines ) Transmission lines ST11 and ST12.

In the embodiment of the input power dividers 11 and 12 of FIG. 1, since the input signal connection terminals are included in the MMIC on-chip, the input signal connection terminals are connected through the RF pads F20RPOW (Input pad1, Input pad2). Resistor R11, capacitors C11 and C12 and inductances L11 and L12, and various forms for connecting such lumped elements (e.g., ) Type ), Aza ( ), Typo ( ), Uja ( ), Memory ( ), Date ( ), Cross ( Using a transmission line (ST11, ST12, TML11 to TML23) of), etc.), a design method (layout), which is a Wilkinson distributor structure implemented using a GMMT library, was constructed.

Looking at the function of the circuit and the elements used in the design method, the RF signal input through the input signal connection terminal (F20RPOW) (Input pad1, Input pad2) is a transmission line (ST21, length x width = 40 x 50 μm) ) And branched in parallel through a transmission line (TML11, length x width x bottom = 40 x 50 x 40 μm). Capacitors C11 _and C12 each function as a DC blocking function and form and distribute matching circuits of inductors L11 _and L12 and resistors R11 and doubler output stages that constitute a divider of the output stage. Play a role.

Next, 13 to 16 of FIG. 1 illustrate an example for amplifying the output signals of the splitters 11 and 12. The circuit configuration and layout of one embodiment of the power amplifier for amplifying the input signal power are shown.

As shown in the figure, the input power amplifiers 13, 14, 15, and 16 include a resistor R12 for widening the bandwidth of the radio frequency RF and distributed input power for producing a desired output. A field effect transistor (FET900) for amplifying, an inductor (L21) for feeding and supplying a DC power supply for applying a voltage to the gate of the field effect transistor, a cross for connecting an input port and the elements ( ) Transmission line TML21, an inductor L22 for feeding and supplying DC power to supply voltage to an output terminal of the field effect transistor, and a plurality of magnetic elements provided between input and output terminals of the respective elements ( ) And date ( ) Transmission lines ST21 and ST22.

In the input power amplifiers 13 to 16 of FIG. 1, since the maximum output level of the power is limited by a 1 dB compression point due to the fabrication characteristics of the FET amplifying device, amplification by a single amplifier is required to produce a desired output. Rather, the power must be distributed and amplified to achieve high output power. In Fig. 1, each of the amplifiers 13 to 16 has the same characteristic.

The input ports of the amplifiers 13 to 16 of FIG. 1 are branched in three directions from a cross-shaped transmission line TML21 through a straight transmission line. The voltage (Vgs) applied to the gate of the amplifying FET having a gate width of 900 μm is fed through the inductor L21 for feeding the DC power through the connection pad (F20DCAP) used to supply the DC power in the MMIC chip and matching the input stage. Is supplied. In addition, the resistor R12 serves to widen the bandwidth of the amplified RF frequency. On the other hand, the applied voltage Vds supplied to the drain of the FET is supplied via the inductor L22 for DC power feeding and output stage matching.

The output power of the combiner 17 of FIG. 1 combines the output power of the power amplifier of FIG. 1 to couple the output power of the externally connected coupler 17 configured by using the transmission line of FIG. 1 and a resistor that is a lumped element. One embodiment of the lossless coupler 17 is a circuit configuration.

As shown in the figure, the output stage combiner of the Wilkinson combiner structure composed of a transmission line and a resistor includes a first and second input stage combiner (1-10) for combining amplified signals from a power amplifier input to two input stages, respectively. And an output stage combiner 1-30 which combines and outputs two combined signals outputted from 1-20.

The first input coupler 1-10 is connected to the resistors R13 connected between the input port 1 and the input port 2 in parallel with the transmission lines WTML11 and WTML12 and the transmission lines WTML11 and WTML12. And a transmission line WTML11 and WTML12 connected in parallel with each other, and a transmission line WTML15 having an input side connected to a common contact on the output side of the two transmission lines WTML13 and WTML14.

According to the present embodiment, the Wilkinson coupler is losslessly coupled to the input RF signal power, and is matched to an optimum load impedance. The Wilkinson coupler combines the output powers of the four amplifiers 13 to 16 shown in FIG. It plays a role.

The Wilkinson output stage combiner, which consists of a transmission line and a resistor, combines the output from each amplifier with a minimum loss (about 3 dB) to match the output impedance. Its structure and the values of the circuit elements directly affect the output power and output gain efficiency of the entire power amplifier.

The output power combiner 17 of FIG. 1 is a circuit diagram of an embodiment and its design method constructed using an ideal transmission line.

As shown in the figure, an ideal transmission line combiner constructed using transmission lines WTML13 to WTML19 and resistors R13 to R14, R _{L also} includes first and second input stage coupling units for coupling amplified signals input to two input terminals, respectively. (1-10, 1-20) and the output stage combiner (1-30) for combining and outputting the two combined signals output from the first and second input stage combiner (1-10, 1-20) again Equipped.

The first input coupling unit (1-10) is connected in parallel with a resistor (R13) connected between the input port 2 and the input port 3 ( ) Is connected in parallel with the W-type transmission line (WTML11) and the U-shaped transmission line (WTML11) ) Transmission line (WTML12), above Connected in series with the L-shaped transmission lines (WTML11, WTML12) Shaped transmission line (WTML15), the two Let's go to the contact area of the transmission line (WTML11, WTML12) ) Is composed of a transmission line (WTML15).

The second input end coupling unit 1-20 is a structure for coupling an amplified input signal applied to the input port 4 and the input port 5, and has the same structure as the first input end coupling unit 1-10. .

In addition, the first input terminal coupling unit 1-30 may include the resistor R13 and the output terminal of the first input terminal coupling unit 1-10 and the output terminal of the second input terminal coupling unit 1-20. Connected in parallel with the resistor R13 with respect to the output terminal of the first input terminal coupling part 1-10 ( ) Transmission line (WTML16), above Dates connected in parallel with the W-type transmission line (WTML16) ) Transmission line (WTML18) and the date ( 결합 coupled to the contact area of the) transmission line (WTML18) It consists of a resistor (R _L ) connected between the output side of the WTML19 and the ground.

In the preferred embodiment of the present invention as described above, assuming that the loss of the combiner is a maximum of 1 dB when the final output power is at most 300 mW, approximately 400 mW of power must be obtained from four FETs so that one FET The output is about 100 mW. If the drain bias voltage is set at 5 V, the drain-source current requires 40 mA. Therefore, if the gate-source bias voltage is set to -0.8 V to obtain this current, the desired output can be obtained without increasing harmonic distortion.

As pointed out earlier, the output power and output gain efficiency of the amplifier have a mutually opposite relationship.Increasing the input power to increase the output increases the output power and output gain efficiency, while the second harmonic interference (2-tone Harmonic distortion is aggravated by 3'rd order IP). Therefore, in the present invention, in harmony with such a contradiction relationship, the 1 dB compression point of the amplifier is designed to be about 30 dB higher than the output second-order harmonic interference even at the maximum output of 570 mW, thereby obtaining stable output power and output gain efficiency.

On the other hand, when this maximum output is obtained, the input matching characteristics S22 (first output stage reflection coefficient) and S33 (second output stage reflection coefficient) have a bandwidth of 800 MHz at -10 dB or less, and the output stage matching characteristic S11 (input stage reflection coefficient). ) Has a bandwidth above 600 MHz at -10 dB or less.

In Table 1, the output characteristics of the layout circuit, ie, the total power amplifier combined with the optimized combination of transmission line and resistance, are shown in Table 1.

2A is an input / output characteristic diagram of a power amplifier using a conventional feedback method, and FIG. 2B is an input / output characteristic diagram of a power amplifier having an external connection structure of a divider and a coupler according to the present invention, and the input / output reflection of FIG. The coefficient is above -10 dB. Thus, as described above, it can be easily confirmed that the inventive concept using the distributor and the external connection coupler proposed in the present invention is a design method capable of improving desired output characteristics (high output power and high output gain efficiency).

TABLE 1

As described above, the power amplifier circuit and its design method of the present invention having a splitter and coupler external connection structure can be utilized as the RF transmitter power amplifier of the terminal for the IMT-2000, the RF transmitter of the wireless local area network (WLL) terminal It can also be widely used as a core device.

Although the foregoing has been described with respect to embodiments of the present invention, those skilled in the art will understand that various implementations are possible within the scope of the technical idea of the present invention. In addition, those skilled in the art will be capable of various modifications, changes, additions, and the like within the spirit and scope of the present invention, and such modifications and changes should be regarded as belonging to the following claims.

According to the present invention as described above, the output of the power amplifier implemented by MMIC can be significantly larger than conventional commercial components, and not only improves the output power and output gain efficiency, but also doubles the input signal. High output power and high output gain efficiency can be obtained at the output stage configured by designing the input stage into which the distributor divider is inserted and the amplifier stage designed by the parallel structure and the coupler connected externally.

Claims (16)

In the power amplifier, An RF input port as an input terminal; Input power distribution means for distributing one input signal applied from the outside through the RF input port into a plurality of signals having substantially the same magnitude; A plurality of amplifying means for distributing and amplifying desired power by amplifying a plurality of input signals distributed by the distributing means in parallel, respectively; And Output power combining means for combining and outputting a plurality of signals amplified by the plurality of amplifying means Power amplifier having a splitter and coupler external connection structure consisting of. The method of claim 1, The input power distribution means, First and second input power divider for separating and outputting the input signal into two signals without input loss Power amplifier having an external connection structure and a splitter and combiner, including The method of claim 2, The plurality of amplification means, First and second amplifiers connected to output terminals of the first input power divider and providing optimized amplified signals using active elements; And Third and fourth amplifiers connected to output terminals of the second input power divider and providing optimized amplified signals using active elements, respectively. Power amplifier having a splitter and coupler external connection structure, including a. The method of claim 2, The first input power divider and the second input power divider, respectively, A signal input terminal connected to the RF input port to receive a signal applied from the outside; First and second capacitors for blocking the DC voltage component of the signal applied to the signal input terminal and feeding the DC voltage component; The first right for connecting the signal input terminal and the first capacitor and the second capacitor ( ) Transmission line; Vocabulary for branching one signal input input through the signal input terminal into two signals ( ) Transmission line; The above words ( A first inductor connected to a first output side of the) transmission line and matching a branched radio frequency (RF) signal; The above words ( A second inductor connected to a second output side of the) transmission line and matching a branched radio frequency (RF) signal; A second subwoofer connected between the first inductor and the first output terminal; ) Transmission line; A first misspell connected between the second inductor and a second output terminal ( ) Transmission line; The second right ( ) Transmission line and the first typo ( Resistors for matching) transmission lines; And Input and output terminals of the elements, the first and second right ( ) Transmission line and the first typo ( Multiple magnetic fields provided between each of the transmission lines ), Date ( Transmission line Power amplifier having a splitter and coupler external connection structure, including a. The method of claim 4, wherein Many of the above ) Transmission line, Vertical width: Width = 40: 50, the plurality of dates ( ) Is the vertical width: the width = 50: 40, the first right ( ) A power amplifier having an external connection structure of a divider and a combiner, wherein the transmission line has a ratio of vertical width: width: bottom width = 40: 50: 40. The method of claim 1, The output power coupling means, First and second input stage coupling means for coupling the amplified signals input to the plurality of input stages; And Output stage combining means for combining and outputting two combined signals outputted from the first and second input stage combining means again Power amplifier having a splitter and coupler external connection structure, including a. The method of claim 6, The first and second input end coupling means, respectively, A first resistor connected between the first input port and the second input port; A first transmission line connected in parallel with the resistor with respect to the first input port; A second transmission line connected in parallel with the resistor with respect to the second input port; And And a third transmission line connected to the first and second transmission line output side common contacts, The output stage coupling means, A second resistor connected between the output side of the first input port and the second input port; A fourth transmission line connected in parallel with the second resistor with respect to the output side of the first input port; A fifth transmission line connected in parallel with the second resistor with respect to the output side of the second input port; And A sixth transmission line having an input side coupled to the fourth and fifth transmission line output side common contacts; Power amplifier having a splitter and coupler external connection structure, including a. The method of claim 6, The first and second input end coupling means, respectively, A first capacitor connected between the first input port and ground; A second capacitor connected between the second input port and ground; A first resistor connected between the first input port and the first input port; And And first and second inductors connected in parallel with the first resistor to the second input port, The output stage coupling means, A third capacitor and a second resistor grounded between the common contact and the output port of the first and second inductor output sides of the first and second input stage coupling means, respectively Power amplifier having a splitter and coupler external connection structure, including a. The method of claim 6, The first and second input end coupling means, respectively, A first resistor connected between the first input port and the second input port; A first plug connected in parallel with the first resistor with respect to the first input port ( ) Transmission line; A second plug connected in parallel with the first resistor with respect to the second input port ( ) Transmission line; A first memory device connected in series with the first zigzag transmission line ( ) Transmission line; A second memory device connected in series with the second zigzag transmission line ( ) Transmission line; A first date connected in series with the first memory type transmission line ) Transmission line; A second date connected in series with the second memory type transmission line ) Transmission line; And A third letter coupled to the contact portions of the first and second linear transmission lines ( ), Including the transmission line The output stage coupling means, A second resistor connected between an output end of the first input end coupling means and an output end of the second input end coupling means; A fourth letter connected in parallel with the second resistor with respect to the output terminal of the first stage coupling means ( ) Transmission line; A fifth letter connected in parallel with the second resistor with respect to the output terminal of the second stage coupling means ( ) Transmission line; A third memory device connected in series with the fourth U-shaped transmission line ( ) Transmission line; A fourth memory device connected in series with the fifth zigzag transmission line ( ) Transmission line; A third date connected in series with the third memory type transmission line ) Transmission line; A fourth date connected in series with the fourth memory type transmission line ) Transmission line; A fifth letter coupled to a contact portion of the third and fourth linear transmission lines ( ) Transmission line; And Let's say the fifth Third resistor connected between the output side of the transmission line and ground Power amplifier having a splitter and coupler external connection structure, including a. In the power amplifier layout method, Receive an input signal from the outside through the RF input port; Distributing the received one input signal into a plurality of signals having substantially the same magnitude through a plurality of input power distribution means and outputting the same; By amplifying a plurality of input signals distributed by the distributing means by a plurality of amplifying means in parallel, the desired power is distributed and amplified. And a plurality of signals amplified by the plurality of amplifying means. The output power combining means combines and outputs the output amplifier. The method of claim 10, The input power distribution means, A layout method of a power amplifier having an external connection structure of a divider and a combiner, characterized in that it comprises a first and a second input power divider for separating and outputting the input signal into two signals without input loss, respectively. The method of claim 11, The plurality of amplification means, First and second amplifiers connected to output terminals of the first input power divider and providing optimized amplified signals using active elements; And A power amplifier having an external connection structure of a divider and a combiner, each of which is connected to an output terminal of the second input power divider and comprises third and fourth amplifiers providing an amplified signal optimized by using an active element. Layout method. The method of claim 10, The output power coupling means, First and second input stage coupling means for coupling the amplified signals input to the plurality of input stages; And And an output stage coupling means for combining and outputting two combined signals outputted from the first and second input stage coupling means again. The method of claim 13, The first and second input end coupling means, respectively, A first resistor connected between the first input port and the second input port; A first transmission line connected in parallel with the resistor with respect to the first input port; A second transmission line connected in parallel with the resistor with respect to the second input port; And And a third transmission line connected to the first and second transmission line output side common contacts, The output stage coupling means, A second resistor connected between the output side of the first input port and the second input port; A fourth transmission line connected in parallel with the second resistor with respect to the output side of the first input port; A fifth transmission line connected in parallel with the second resistor with respect to the output side of the second input port; And And a sixth transmission line connected to the fourth and fifth transmission line output side common contacts, the input side of which is connected to the output side of the fourth amplifier and the fifth transmission line. The method of claim 13, The first and second input end coupling means, respectively, A first capacitor connected between the first input port and ground; A second capacitor connected between the second input port and ground; A first resistor connected between the first input port and the first input port; And And first and second inductors connected in parallel with the first resistor to the second input port, The output stage coupling means, And a third capacitor and a second resistor grounded between the common contact and the output port of the first and second inductor output sides of the first and second input end coupling means, respectively. The layout method of the power amplifier having. The method of claim 13, The first and second input end coupling means, respectively, A first resistor connected between the first input port and the second input port; A first plug connected in parallel with the first resistor with respect to the first input port ( ) Transmission line; A second plug connected in parallel with the first resistor with respect to the second input port ( ) Transmission line; A first memory device connected in series with the first zigzag transmission line ( ) Transmission line; A second memory device connected in series with the second zigzag transmission line ( ) Transmission line; A first date connected in series with the first memory type transmission line ) Transmission line; A second date connected in series with the second memory type transmission line ) Transmission line; And A third letter coupled to the contact portions of the first and second linear transmission lines ( ), Including the transmission line The output stage coupling means, A second resistor connected between an output end of the first input end coupling means and an output end of the second input end coupling means; A fourth letter connected in parallel with the second resistor with respect to the output terminal of the first stage coupling means ( ) Transmission line; A fifth letter connected in parallel with the second resistor with respect to the output terminal of the second stage coupling means ( ) Transmission line; A third memory device connected in series with the fourth U-shaped transmission line ( ) Transmission line; A fourth memory device connected in series with the fifth zigzag transmission line ( ) Transmission line; A third date connected in series with the third memory type transmission line ) Transmission line; A fourth date connected in series with the fourth memory type transmission line ) Transmission line; A fifth letter coupled to a contact portion of the third and fourth linear transmission lines ( ) Transmission line; And Let's say the fifth And a third resistor connected between the output side of the) transmission line and the ground.