JPH05304423A - Multistage microwave component - Google Patents

Abstract

PURPOSE:To make it possible to easily perform wirings by unnecessitating a DC bias wiring to a microwave component. CONSTITUTION:Microwave components 1 to 5 separate DC bias voltage V and a microwave signal SF to be inputted from an input terminal in a chalk circuit, imparts the microwave signal SF to a self-internal circuit, mixes the microwave signal SF from the self-internal circuit and the DC bias voltage V from the chalk circuit in the chalk circuit and outputs the mixture via an output terminal. Microwave components 1, 2, 4 impart DC bias voltage V to amplifiers 11, 21, 41 in DC bias lines 18, 28, 48.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for a multi-stage microwave component of a microwave communication device. In particular, the present invention relates to a multi-stage microwave component in which a plurality of microwave components using a DC bias are connected.

[0002]

2. Description of the Related Art FIG. 2 is a block diagram of a conventional multi-stage microwave component.

Conventionally, a multi-stage microwave component has been constructed as shown in FIG. 2 when a plurality of microwave components using a DC bias are connected.
In FIG. 2, the microwave signal SF is received at the input terminal 12 of the microwave component 1A, and the microwave SF is transferred to the next microwave component 2A at the output terminal 13. At this time, the DC bias voltage V is the DC bias terminal 1
Accept from 0. Similarly, the microwave component 2A transfers the microwave signal SF to the microwave component 3A and receives the DC bias voltage V. In the microwave component 3A, only the microwave signal SF is delivered to the microwave component 4A. Microphone component 4A transfers microwave signal SF and DC bias voltage V to microwave component 5A, as in microwave component 1A. In the microwave component 5A, similarly to the microwave component 3A, the microwave signal SF is delivered to the next microwave component.

[0004]

However, in such a conventional multi-stage microwave component, when a microwave component using a DC bias voltage is used, in addition to the microwave input terminal and the output terminal, Since a DC bias terminal is required and a DC bias voltage must be connected in addition to the microwave signal connection, the wiring becomes complicated.

The present invention solves the above-mentioned drawbacks, and an object of the present invention is to provide a multi-stage microwave component which does not require a DC bias wiring to the microwave component and can be simplified.

[0006]

SUMMARY OF THE INVENTION The present invention includes a plurality of first microwave components including an internal circuit that uses an equal voltage DC bias voltage from a single power supply and an internal circuit that does not use a DC bias voltage. A plurality of second microwave components are cascade-connected, and the first and second microwave components respectively output an input terminal for inputting a microwave signal and a microwave signal output by the internal circuit thereof. In a multi-stage microwave component including an output terminal, a DC bias voltage and a microwave signal are input to the input terminal, and the first and second microwave components are respectively connected to their own input terminal and their own internal circuit. The microwave signal separated by separating the microwave signal from the DC bias voltage from the input terminal inserted between A first choke circuit to be given to its own internal circuit, and a self-output by mixing the separated DC bias voltage inserted between the output of its own internal circuit and its own output terminal with the microwave signal from its own internal circuit. A second choke circuit applied to a terminal, and the first microwave component includes a supply means for applying the separated DC bias voltage of the first choke circuit to its own internal circuit.

According to the present invention, the first choke circuit of the first and second microwave components includes a first capacitor inserted between an own input terminal and an own internal circuit, and one of A first choke whose end is connected to its own input terminal, and a second capacitor which is inserted between the other end of this first choke and the common potential point are provided. The second choke circuit of the microwave component has a third capacitor inserted between the output of its own internal circuit and its own output terminal, and one end is connected to its own output terminal and the other end is its own A second choke connected to the other end of the one choke, and a fourth capacitor inserted between the other end of the second choke and the common potential point, the first microwave The component supply means is the above first choke. The DC bias voltage from the other end may include means for providing to the own internal circuits.

[0008]

The DC bias voltage and the microwave signal are input to the input terminal. The first and second microwave components respectively separate the DC bias voltage from the own input terminal and the microwave signal by the first choke circuit inserted between the own input terminal and the own internal circuit. The generated microwave signal is applied to its own internal circuit. A second choke circuit inserted between the output of the self-internal circuit and the self-output terminal mixes the separated DC bias voltage and the microwave signal from the self-internal circuit and supplies the mixed signal to the self-output terminal. The first microwave component applies the DC bias voltage separated by the first choke circuit to its own internal circuit by the supply means.

As described above, the DC bias wiring to the microwave component is unnecessary, and the wiring can be simplified.

[0010]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a multi-stage microwave component according to an embodiment of the present invention.

In FIG. 1, the multi-stage microwave component is an amplifier (transistor) 11, 2 as an internal circuit using a DC bias voltage V of equal voltage from a single power source.
Microwave components 1, 2 and 4 as a plurality of first microwave components including 1 and 41 and a plurality of second microwave components including a filter 31 or an attenuator 51 as an internal circuit that does not use a DC bias voltage. Wave components 3 and 5 are connected in cascade,
The microwave components 1 to 5 are input terminals 12, 22, 32, 42 for inputting the microwave signal SF, respectively.
52 and output terminals 13, 23, 33, 43, 53 for outputting the microwave signal SF output from the internal circuit thereof.

Here, the feature of the present invention is that the DC bias voltage V and the microwave signal SF are input to the input terminals 12, 22, 32, 42 and 52, and the microwave components 1 to 5 are themselves. As a first choke circuit that is inserted between the input terminal and the own internal circuit, separates the DC bias voltage V from the own input terminal and the microwave signal SF, and gives the separated microwave signal SF to the own internal circuit. Choke circuits 14 ₁₁ , 14 ₂₁ , 14 ₃₁ , 1
4 ₄₁ , 14 ₅₁ , the DC bias voltage V inserted between the output of the own internal circuit and the own output terminal and separated and the microwave signal SF from the own internal circuit are mixed and given to the own output terminal. Choke circuit 1 as the second choke circuit
4 ₁₂ , 14 ₂₂ , 14 ₃₂ , 14 ₄₂ , 14 ₅₂ , and the microwave components 1, 2, 4 are choke circuits 14 ₁₁ ,
It is to include a supply means for supplying the separated DC bias voltage V of 14 ₂₁ and 14 ₄₁ to its own internal circuit.

Further, the second microwave components 1 to
The choke circuits 14 _{11 to} 14 ₅₁ of No. 5 are capacitors 15 ₁₁ to 15 ₅₁ as the first capacitors inserted between the own input terminal and the own internal circuit, and a first one having one end connected to the own input terminal. choke 16 _11-16 as one of the choke
_51, and capacitors 17 _{11 to} 17 ₅₁ as second capacitors inserted between the other ends of the chokes 16 _{11 to} 16 ₅₁ and the common potential point.
The choke circuits 14 _{12 to} 14 ₅₂ of No. 5 are capacitors 15 ₁₂ to 15 ₅₂ as third capacitors inserted between the output of the internal circuit and its own output terminal, and one end is connected to the own output terminal. The other end of the choke 16 ₁₂ serves as a second choke connected to the other ends of the chokes 16 _{11 to} 16 _51.
˜16 _52, and capacitors 17 ₁₂ ˜ 17 ₅₂ as fourth capacitors inserted between the other ends of the chokes 16 ₁₂ ˜ 16 ₅₂ and the common potential point, and supply of the microwave components 1, 2, 4 The means includes DC bias lines 18, 28, 48 as means for applying a DC bias voltage from the other ends of the chokes 16 _{11 to} 16 ₅₁ to its own internal circuit.

The operation of the multi-stage microwave component having such a configuration will be described.

In FIG. 1, the microwave component 1
The microwave signal SF and the DC bias voltage V are received at the input terminal 12 of. In the microwave component 1,
First, the DC bias voltage V and the microwave signal SF are separated by the choke circuit 14 ₁₁ of the input terminal 12. next,
The DC bias voltage V is used as the bias voltage of the amplifier 11, and the microwave signal SF is amplified by the amplifier 11. The amplified microwave signal SF and the DC bias signal V are mixed by the choke circuit 14 ₁₂ of the output terminal 13 and delivered to the microwave component 2 to be connected next. The microwave component 1 does not require a DC bias terminal.

In the microwave component 2, the DC bias voltage V and the microwave signal SF are delivered to the filter 31 as in the microwave component 1.

In the filter 31, the choke circuit 14 ₃₁ of the input terminal 32 uses the DC bias voltage V and the microwave signal S.
F is separated, the DC bias V and the microwave signal SF are mixed by the choke circuit 14 ₃₂ of the output terminal 33, and the mixture is delivered to the microwave component 4. At this time, the DC bias voltage V is not used by the filter 31. Similar to the microwave component 1, the microwave component 4 transfers the DC bias voltage V and the microwave signal SF to the next connected microwave component in the attenuator 51 similarly to the filter 31.

[0018]

As described above, the present invention does not require the DC bias wiring to the microwave component and has an excellent effect that the wiring can be simplified.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of a multi-stage microwave component according to an embodiment of the present invention.

FIG. 2 is a block diagram of a conventional multi-stage microwave component.

[Explanation of symbols]

1~5,1A~5A Microwave Component 11,21,41 amplifier 31 filter 51 attenuator 10 _1, 20 _2, 40 ₄ DC bias terminal 12,22,32,42,52 input terminal 13, 23, 33, 43 , 53 output terminals 14 ₁₁ , 14 ₂₁ , 14 ₃₁ , 14 ₄₁ , 14 ₅₁ , 14 ₁₂ , 1
4 ₂₂ , 14 ₃₂ , 14 ₄₂ , 14 ₅₂ Choke circuit 15 ₁₁ , 15 ₂₁ , 15 ₃₁ , 15 ₄₁ , 15 ₅₁ , 15 ₁₂ , 1
5 ₂₂ , 15 ₃₂ , 15 ₄₂ , 15 ₅₂ , 17 ₁₁ , 17 ₂₁ , 17
₃₁ , 17 ₄₁ , 17 ₅₁ , 17 ₁₂ , 17 ₂₂ , 17 ₃₂ , 1
7 ₄₂ , 17 ₅₂ capacitors 16 ₁₁ , 16 ₂₁ , 16 ₃₁ , 16 ₄₁ , 16 ₅₁ , 16 ₁₂ , 1
6 ₂₂ , 16 ₃₂ , 16 ₄₂ , 16 ₅₂ Choke 18, 28, 48 DC bias line SF microwave signal V DC bias voltage

Claims (2)

[Claims] 1. A plurality of first microwave components including an internal circuit using an equal voltage DC bias voltage from a single power source and a plurality of second microwave components including an internal circuit using no DC bias voltage. Are cascade-connected, and the first and second microwave components are multi-stage microwave components each including an input terminal for inputting a microwave signal and an output terminal for outputting a microwave signal from its own internal circuit. In the above, a DC bias voltage and a microwave signal are input to the input terminal, and the first and second microwave components are respectively inserted between the self input terminal and the self internal circuit, The first bias that separates the DC bias voltage and the microwave signal and applies this separated microwave signal to its own internal circuit Second choke circuit inserted between the output of the internal circuit and the internal output terminal and the separated DC bias voltage and the microwave signal from the internal circuit which are applied to the internal output terminal And the first microwave component includes a supply means for applying the separated DC bias voltage of the first choke circuit to its own internal circuit. 2. The first choke circuit of the first and second microwave components has a first capacitor inserted between its own input terminal and its own internal circuit, and one end thereof is self-input. A first choke connected to the terminal, and a second capacitor inserted between the other end of the first choke and the common potential point, the first and second microwave components The second choke circuit of is a third capacitor inserted between the output of the self-internal circuit and the self-output terminal, and one end is connected to the self-output terminal and the other end is the self-first choke. A second choke connected to the other end of the second choke, and a fourth capacitor inserted between the other end of the second choke and the common potential point, and the supply means for supplying the first microwave component. From the other end of the first choke above 2. The multi-stage microwave component according to claim 1, including means for applying the DC bias voltage of 1. to the internal circuit.