CN207099036U - Adjustable Integrated VCO - Google Patents
Adjustable Integrated VCO Download PDFInfo
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- CN207099036U CN207099036U CN201721111875.4U CN201721111875U CN207099036U CN 207099036 U CN207099036 U CN 207099036U CN 201721111875 U CN201721111875 U CN 201721111875U CN 207099036 U CN207099036 U CN 207099036U
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- circuit
- negative resistance
- varactor
- input
- frequency tuning
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Abstract
It the utility model is related to integrated amplifier technical field, a kind of more particularly to adjustable Integrated VCO, including single channel or two-way frequency tuning circuit, negative resistance circuit, attenuator circuit and buffer amplifier circuit, the wherein input of the output termination negative resistance circuit of single channel or two-way frequency tuning circuit, the input of the output termination attenuator circuit of negative resistance circuit, the input of the output termination buffer amplifier circuit of attenuator circuit, the single channel or two-way frequency tuning circuit realize the adjustable frequency band output in broadband or arrowband in chip exterior；Negative resistance circuit, attenuator circuit and buffer amplifier circuit are integrated on one chip.This oscillator enters the tuning of line of hitch oscillator frequency using the frequency tuning circuit being made up of varactor, bonding gold wire and thin-film technique microstrip line, and the frequency band for realizing arrowband voltage controlled oscillator can be with upper and lower translation frequency.
Description
Technical field
It the utility model is related to integrated amplifier technical field, more particularly to a kind of adjustable Integrated VCO.
Background technology
With the continuous development of microwave technology, radio frequency and wireless market receive much attention, and RF Voltage-Controlled Oscillator is frequency production
The indispensable part of source of students, as the key modules of the circuits such as phaselocked loop, frequency synthesis and clock recovery, is widely used in
Mobile phone, satellite communication terminal, base station, radar, missile brain, military channels, digital wireless communication, optics multiplexing
In the electronic systems such as device, optical sender, conclusive influence is suffered from the performance of electronic system, size, weight and cost, is
Radio circuit designs and an integrated difficult point.
In the practical application of lock phase modulating system, there are wide tuning bandwidth and low tuning spirit to voltage controlled oscillator requirement
Sensitivity.Traditional wideband voltage controlled oscillator is very high to the susceptibility of VT, and low voltage-controlled of tuning voltage sensibility is shaken
The tuning bandwidth for swinging device is very narrow, it is impossible to covers wide frequency band.Therefore need a kind of broadband and arrowband voltage controlled oscillator can be back and forth
Switching, the frequency band of arrowband voltage controlled oscillator can be with the scheme of upper and lower translation.
Utility model content
The purpose of this utility model is to overcome the shortcomings of above-mentioned technology, and provides a kind of adjustable Integrated VCO,
The frequency band of arrowband voltage controlled oscillator can be with upper and lower translation.
The utility model to achieve the above object, using following technical scheme：
A kind of adjustable Integrated VCO, it is characterised in that：Including single channel or two-way frequency tuning circuit, negative resistance electricity
The input of the output termination negative resistance circuit of road, attenuator circuit and buffer amplifier circuit, wherein single channel or two-way frequency tuning circuit
End, the input of the output termination attenuator circuit of negative resistance circuit, the input of the output termination buffer amplifier circuit of attenuator circuit,
The single channel or two-way frequency tuning circuit realize the adjustable frequency band output in broadband or arrowband in chip exterior；Negative resistance circuit, decline
Powered down road and buffer amplifier circuit are integrated on one chip.
Preferably, the negative resistance circuit includes oscillating tube T1, resistance R2-R4, inductance L4-L6, electric capacity C4-C6, oscillating tube
T1 base stage is connected by electric capacity C4 with emitter stage, and emitter stage is grounded by inductance L6 and resistance R4, electric capacity C5 in parallel, current collection
Pole is connected by capacitance C6 with attenuator circuit, oscillating tube T1 base stage and emitter stage and single channel or two-way frequency tuning electricity
Road is connected, and power vd D, inductance L4-L5 and biasing resistor R2-R3 constitute the supply network of negative resistance circuit.
Preferably, the single channel frequency tuning circuit is by varactor D1, capacitance C1-C2, biasing resistor R1, key
B alloy wire L1-L3 and thin film microstrip line TL compositions, varactor D1 negative pole connect VT Vtune input, transfiguration
Diode D1 positive pole is connected by bonding gold wire L2 and capacitance C2 with negative resistance circuit, and by biasing resistor R1 to directly
Stream ground, bonding gold wire L1 termination VT Vtune input, the other end are grounded by capacitance C1, and film is micro-
Band line TL is connected by bonding gold wire L3 with negative resistance circuit.
Preferably, the two-way frequency tuning circuit is by varactor D1-D2, capacitance C1-C3, biasing resistor
R1, bonding gold wire L1-L3 and thin film microstrip line TL compositions, bonding gold wire L1 termination VT Vtune input, separately
One end is grounded by capacitance C1, and varactor D1-D2 negative pole meets Vtune inputs, varactor D1-D2 respectively
Positive pole be connected by bonding gold wire L2, L3 and capacitance C2, C3 with negative resistance circuit, varactor D1 positive pole passes through
Biasing resistor R1 is grounded, and varactor D2 positive pole is grounded by thin film microstrip line TL.
The beneficial effects of the utility model are:Relative to prior art, this oscillator use by varactor, bonding gold wire and
The frequency tuning circuit that thin-film technique microstrip line is formed enters the tuning of line of hitch oscillator frequency, realizes the frequency of arrowband voltage controlled oscillator
Band can together constitute oscillating circuit with upper and lower translation frequency, tuning circuit and negative resistance circuit；Attenuator circuit and Hyblid Buffer Amplifier electricity
Road reduces draw of the load to oscillating circuit, improves the carrying load ability of oscillator.
Brief description of the drawings
Fig. 1 is that single channel of the present invention tunes voltage-controlled oscillator circuit figure；
Fig. 2 is that two-way of the present invention tunes voltage-controlled oscillator circuit figure.
Embodiment
Below in conjunction with the accompanying drawings and preferred embodiment describes specific embodiment of the present utility model in detail.As shown in Figure 1, 2,
The adjustable Integrated VCO of the present invention includes single channel or two-way frequency tuning circuit, negative resistance circuit, attenuator circuit and buffering
The input of the output termination negative resistance circuit of amplifying circuit, wherein frequency tuning circuit, the output termination decay electricity of negative resistance circuit
The input on road, the input of the output termination buffer amplifier circuit of attenuator circuit.
It will be seen from figure 1 that the single channel frequency tuning circuit outside chip is by varactor D1, electric capacity C1-C2, biased electrical
R1, bonding gold wire (inductance) L1-L3 and thin film microstrip line TL compositions are hindered, the negative pole of varactor connects Vtune inputs, positive pole
It is connected by capacitance C2 and bonding gold wire L2 with negative resistance circuit, and, TL is by bonding by resistance with being biased to direct current
Spun gold L3 is connected with negative resistance circuit.Be followed by upper road tuning circuit from VT Vtune inputs, upper road tuning circuit by D1,
R1, L1, L2, C1, C2 are formed, and oscillator is vibrated the frequency band in a relative narrower, make oscillator by the TL for adjusting lower road
Working band upper and lower translation.C2 can also play a part of adjusting frequency band in addition to as capacitance.
Figure it is seen that two-way frequency tuning circuit outside chip is by varactor D1-D2, electric capacity C1-C3, partially
Resistance R1, bonding gold wire (inductance) L1-L3 and thin film microstrip line TL compositions are put, the negative pole of varactor connects Vtune inputs,
Positive pole is connected by capacitance C2, C3 and bonding gold wire L2, L3 with negative resistance circuit, and is biased to by resistance or microstrip line
Direct current.It is divided into two-way after VT Vtune inputs and carries out frequency tuning, upper road tuning circuit is by D1, R1, L2, C2 group
Into, make oscillator vibration in higher frequency；Lower road tuning circuit is made up of D2, TL, L3, C3, makes oscillator vibration relatively low
Frequency；L1 and C1 is public tuning tip, participates in the frequency tuning of upper and lower two-way.The value of the upper and lower two-way component of Reasonable adjustment
Oscillator operation can be made in wider frequency band, and the linearity is preferable.Wherein R1, TL make the positive pole of varactor be biased to direct current
Ground, C2, C3 play blocking effect just, participate in frequency tuning again.
Negative resistance circuit, attenuator circuit and buffer amplifier circuit are integrated on one chip, and wherein negative resistance circuit includes vibration
Pipe T1, resistance R2-R4, inductance L4-L6, electric capacity C4-C6.Oscillating tube T1 base stage is connected by electric capacity C4 with emitter stage, transmitting
Pole is connected with attenuator circuit by capacitance C6, shaken to ground, colelctor electrode by inductance L6 and resistance R4, electric capacity C5 in parallel
The base stage and emitter stage for swinging pipe T1 are connected with frequency tuning circuit, power vd D, inductance L4-L5 and biasing resistor R2-R3 compositions
The supply network of negative resistance circuit.C4, C5 are the cores that negative resistance circuit realizes function, frequency tuning circuit and chip outside chip
On negative resistance circuit together constitute oscillating circuit.The effect of attenuator circuit and buffer amplifier circuit is to reduce load to vibration electricity
The draw on road, improve the carrying load ability of oscillator.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (4)
- A kind of 1. adjustable Integrated VCO, it is characterised in that：Including single channel or two-way frequency tuning circuit, negative resistance circuit, The input of the output termination negative resistance circuit of attenuator circuit and buffer amplifier circuit, wherein single channel or two-way frequency tuning circuit, The input of the output termination attenuator circuit of negative resistance circuit, the input of the output termination buffer amplifier circuit of attenuator circuit, institute Single channel or two-way frequency tuning circuit are stated in chip exterior, realizes the adjustable frequency band output in broadband or arrowband；Negative resistance circuit, decay Circuit and buffer amplifier circuit are integrated on one chip.
- 2. adjustable Integrated VCO according to claim 1, it is characterised in that：The negative resistance circuit includes oscillating tube T1, resistance R2-R4, inductance L4-L6, electric capacity C4-C6, oscillating tube T1 base stage are connected by electric capacity C4 with emitter stage, emitter stage It is grounded by inductance L6 and resistance R4, electric capacity C5 in parallel, colelctor electrode is connected by capacitance C6 with attenuator circuit, is vibrated Pipe T1 base stage and emitter stage is connected with single channel or two-way frequency tuning circuit, power vd D, inductance L4-L5 and biasing resistor R2-R3 constitutes the supply network of negative resistance circuit.
- 3. adjustable Integrated VCO according to claim 2, it is characterised in that：The single channel frequency tuning circuit by Varactor D1, capacitance C1-C2, biasing resistor R1, bonding gold wire L1-L3 and thin film microstrip line TL compositions, transfiguration two Pole pipe D1 negative pole connects VT Vtune input, and varactor D1 positive pole passes through bonding gold wire L2 and blocking electricity Hold C2 with negative resistance circuit to be connected, and, bonding gold wire L1 a termination VT Vtune. by biasing resistor R1 to direct current Input, the other end is grounded by capacitance C1, and thin film microstrip line TL is connected by bonding gold wire L3 with negative resistance circuit.
- 4. adjustable Integrated VCO according to claim 2, it is characterised in that：The two-way frequency tuning circuit by Varactor D1-D2, capacitance C1-C3, biasing resistor R1, bonding gold wire L1-L3 and thin film microstrip line TL compositions, bonding Spun gold L1 termination VT Vtune input, the other end are grounded by capacitance C1, varactor D1-D2 Negative pole connect Vtune inputs respectively, varactor D1-D2 positive pole passes through bonding gold wire L2, L3 and capacitance C2, C3 It is connected with negative resistance circuit, varactor D1 positive pole is grounded by biasing resistor R1, and varactor D2 positive pole passes through Thin film microstrip line TL is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721111875.4U CN207099036U (en) | 2017-08-31 | 2017-08-31 | Adjustable Integrated VCO |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721111875.4U CN207099036U (en) | 2017-08-31 | 2017-08-31 | Adjustable Integrated VCO |
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| Publication Number | Publication Date |
|---|---|
| CN207099036U true CN207099036U (en) | 2018-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721111875.4U Active CN207099036U (en) | 2017-08-31 | 2017-08-31 | Adjustable Integrated VCO |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107508577A (en) * | 2017-09-30 | 2017-12-22 | 天津中科海高微波技术有限公司 | Adjustable Integrated VCO |
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2017
- 2017-08-31 CN CN201721111875.4U patent/CN207099036U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107508577A (en) * | 2017-09-30 | 2017-12-22 | 天津中科海高微波技术有限公司 | Adjustable Integrated VCO |
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