CN103354442A - Multifunctional frequency multiplier - Google Patents
Multifunctional frequency multiplier Download PDFInfo
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- CN103354442A CN103354442A CN2013102920314A CN201310292031A CN103354442A CN 103354442 A CN103354442 A CN 103354442A CN 2013102920314 A CN2013102920314 A CN 2013102920314A CN 201310292031 A CN201310292031 A CN 201310292031A CN 103354442 A CN103354442 A CN 103354442A
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Abstract
The invention discloses a multifunctional frequency multiplier, which comprises an input low pass filter, a pair of Schottky diodes connected in series in the same direction, an output band pass filter, two 1/4 wavelength open-circuit lines in series connection, a high-frequency choke circuit, a first phase adjusting transmission line, a second phase adjusting transmission line and a third phase adjusting transmission line. The multifunctional frequency multiplier provided by the invention is simple in circuit structure and low in frequency-multiplication stray, and can be applied to miniaturized highly-integrated broadband frequency synthesizers or multi-mode transceivers.
Description
Technical field
The present invention relates to a kind of frequency multiplier that is applied to microwave, millimeter wave frequency band, this frequency multiplier can be realized low spuious secondary and triductor simultaneously, is particularly useful for communicating by letter or the frequency source in electronic countermeasures field.
Background technology
Frequency source is the heart of communication and radar system, and along with the eruptive growth of Modern Communication System data capacity, signal bandwidth is often up to several GHzs; In addition, in order to realize the miniaturization of communication system, the transceiver of a plurality of frequency ranges is with integrated design.For example, in electronic warfare system, the bandwidth of frequency synthesizer often covers certain or a plurality of radar frequency band, and using in the frequency source system of electronic countermeasures of frequency multiplier is very extensive, sometimes often needs to realize simultaneously secondary and three frequencys multiplication of certain reference frequency.For another example, in the multi-mode satellite communication system, if the transmitter (local oscillator is 28GHz approximately) of Ka frequency range and the transmitter (local oscillator is 42GHz approximately) of EHF wave band are integrated, can be by the 14GHz media resonant oscillator be obtained by secondary frequency multiplication and three frequencys multiplication respectively.
Generally, secondary frequency multiplication and three frequencys multiplication realize by the frequency multiplier of two balanced types respectively, and this balanced type frequency multiplier has advantages of that shg efficiency is high, idle circuit is simple and spuious inhibition is high.For example for the balanced type frequency tripler, utilize the architectural characteristic of circuit itself, can suppress even-order harmonic, thereby can simplify the design of idle circuit.But this frequency multiplier can only produce an available harmonic component (secondary or three times), if certain reference frequency source will be carried out simultaneously secondary or three frequencys multiplication, often needs varactor doubler and the frequency tripler of two balanced types.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of simple in structure, and can produce simultaneously low spuious secondary and the multi-functional frequency multiplier of triple-frequency harmonics.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
A kind of multi-functional frequency multiplier comprises low pass filter, high frequency choke circuit, band pass filter, the first phase adjusted transmission line, the second phase adjusted transmission line, third phase position adjusting transmission line, the first Schottky diode, the second Schottky diode, the first open-circuit line and the second open-circuit line;
Described the first Schottky diode and the second Schottky diode series aiding connection, the common port of remembering the first Schottky diode and the second Schottky diode is a contact, the plus earth of the second Schottky diode; Described the first open-circuit line and the series connection of the second open-circuit line, the common port of remembering the first open-circuit line and the second open-circuit line is the b contact;
The input of described low pass filter links to each other with a contact by the first phase adjusted transmission line as input, the output of this frequency multiplier;
The output of described band pass filter is regulated transmission line as frequency tripling output, the input of this frequency multiplier by the third phase position and is linked to each other with a contact;
The negative electrode of described the first Schottky diode is connected with the end of b contact with the second phase adjusted transmission line, the other end of described the second phase adjusted transmission line is as two frequency multiplication outputs of this frequency multiplier, and the other end of the second phase adjusted transmission line also links to each other with the output of high frequency choke circuit simultaneously.
Concrete, described low pass filter is so that fundamental signal can pass through, and harmonic signal can not be passed through; Described band pass filter is so that harmonic signal can be passed through, and fundamental signal can not pass through; The input signal wavelength of described the first open-circuit line and the second open-circuit line is 1/4th of fundamental signal wavelength.
Concrete, described high frequency choke circuit only allows direct current signal to pass through, for the first Schottky diode and the second Schottky diode provide biasing.
Low pass filter can pass through fundamental signal, and suppresses harmonic signal; The length of the first phase adjusted transmission line that adjustment links to each other with low pass filter and width can be realized the impedance matching of input signal.
The negative electrode of the second Schottky diode is connected on two between the fundamental signal frequency is for quarter-wave the first open-circuit line and the second open-circuit line, this is so that the odd harmonic component that has in the negative electrode place of the second Schottky diode equivalence ground connection, and even-order harmonic component equivalence open circuit; This circuit structure so that the input signal constant amplitude be added to respectively in the same way on the first Schottky diode and the second Schottky diode.
At the frequency tripling output, the output because a few order harmonic components constant amplitudes of the non-linear generation of diode superpose in the same way, and the counteracting that oppositely superposes of even-order harmonic component constant amplitude, therefore need not filter at the frequency tripling output just can access preferably even-order harmonic component rejection; The output band pass filter allows triple-frequency harmonics to pass through, and the fundametal compoment that power magnitude is larger then is launched back the first Schottky diode and the second Schottky diode, again is used.Regulate length and the width of transmission line by adjusting the third phase position and realize three frequency multiplication output impedance coupling.
At the negative electrode place of the first Schottky diode, even harmonics signal can be exported, and carries out exporting after the impedance matching through the second phase adjusted transmission line.
In order further to improve the shg efficiency of frequency multiplier, the branch road of exporting in two frequencys multiplication has added dc bias circuit, adjusts the shg efficiency that bias voltage just can be optimized frequency multiplier.
Beneficial effect: multi-functional frequency multiplier provided by the invention, circuit structure is simple, frequency multiplication is spuious little, can be used in the wideband frequency synthesizer or multimode transceiver of miniaturization, high integration.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the simulation result of two frequency multiplication outputs;
Fig. 3 is the simulation result of frequency tripling output.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Be illustrated in figure 1 as a kind of multi-functional frequency multiplier, comprise low pass filter 1, high frequency choke circuit 8, band pass filter 10, the first phase adjusted transmission line 2, the second phase adjusted transmission line 7, third phase position adjusting transmission line 9, the first Schottky diode 3, the second Schottky diode 4, the first open-circuit line 5 and the second open-circuit line 6.
Described the first Schottky diode 3 and the second Schottky diode 4 series aiding connections, the common port of remembering the first Schottky diode 3 and the second Schottky diode 4 is a contact, the plus earth of the second Schottky diode 4; Described the first open-circuit line 5 and 6 series connection of the second open-circuit line, the common port of remembering the first open-circuit line 5 and the second open-circuit line 6 is the b contact.
The input of described low pass filter 1 links to each other with a contact by the first phase adjusted transmission line 2 as input, the output of this frequency multiplier.
The output of described band pass filter 10 is regulated transmission line 9 as frequency tripling output, the input of this frequency multiplier by the third phase position and is linked to each other with a contact.
The negative electrode of described the first Schottky diode 3 is connected with the end of b contact with the second phase adjusted transmission line 7, the other end of described the second phase adjusted transmission line 7 is as two frequency multiplication outputs of this frequency multiplier, and the other end of the second phase adjusted transmission line 7 also links to each other with the output of high frequency choke circuit 8 simultaneously.
Described low pass filter 1 is so that fundamental signal can pass through, and harmonic signal can not be passed through; Described band pass filter 10 is so that harmonic signal can be passed through, and fundamental signal can not pass through; The input signal wavelength of described the first open-circuit line 5 and the second open-circuit line 6 is 1/4th of fundamental signal wavelength.
8 in described high frequency choke circuit allows direct current signal to pass through, for the first Schottky diode 3 and the second Schottky diode 4 provide biasing.
Described input low pass filter 1 by Frequency Design at f
0With 3f
0Between, can be by the fundamental signal frequency f of input
0, and suppress harmonic signal frequency 3f
0, the harmonic signal that prevents feeds back to input.
The length of described the first open-circuit line 5 and the second open-circuit line 6 is at fundamental frequency f
0On quarter-wave, thereby be formed on f on the odd-multiple of fundamental frequency at the negative electrode place of described the first Schottky diode 3
0, 3f
0, 5f
0... equivalent ground connection, and on the even-multiple of fundamental frequency 2f
0, 4f
0, 6f
0... equivalence open circuit.
Described the first Schottky diode 3 and the second Schottky diode 4 series aiding connections form Schottky series diode pair, the plus earth of the second Schottky diode 4, and the negative electrode of the first Schottky diode 3 is equivalent ground connection on the odd harmonic of incoming frequency.This structure is so that superpose in the same way in the odd harmonic constant amplitude of frequency tripling output, and the even-order harmonic constant amplitude oppositely superposes, thereby so that only have odd harmonic at the frequency tripling output; Oppositely superpose in two frequency multiplication output odd harmonic constant amplitudes, and only have even-order harmonic.
Described band pass filter 10 is positioned at the frequency tripling output channel, is used for selecting triple-frequency harmonics, and fundamental signal is reflected back Schottky series diode pair, again participates in frequency multiplication.
Although there are a plurality of even-order harmonics in the second harmonic output port, because second harmonic significantly greater than other even-order harmonics, does not therefore need to select second harmonic by band pass filter.
Input and the output matching that transmission line 9 is used for realizing frequency multiplier regulated in described the first phase adjusted transmission line 2, the second phase adjusted transmission line 7 and third phase position, improves the shg efficiency of frequency multiplier.
In order to verify validity of the present invention, we carry out emulation at the ADS of Agilent company software to this frequency multiplier circuit, hypothesis input fundamental frequency is 5GHz during emulation, fundamental signal power is 13dBm, simulation result is (wherein abscissa is output frequency, and ordinate is power output) as shown in Figures 2 and 3.
Fig. 2 has provided the harmonic component of secondary frequency multiplication output port, and as can be seen from the figure, the performance number of second harmonic component is apparently higher than first-harmonic and triple-frequency harmonics performance number.
Fig. 3 has provided the harmonic component of three frequency multiplication output ports, and as can be seen from the figure, the performance number of third-harmonic component is apparently higher than the performance number of even-order harmonic component.
The above only is preferred implementation of the present invention; be noted that for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. a multi-functional frequency multiplier is characterized in that: comprise low pass filter (1), high frequency choke circuit (8), band pass filter (10), the first phase adjusted transmission line (2), the second phase adjusted transmission line (7), third phase position adjusting transmission line (9), the first Schottky diode (3), the second Schottky diode (4), the first open-circuit line (5) and the second open-circuit line (6);
Described the first Schottky diode (3) and the second Schottky diode (4) series aiding connection remember that the common port of the first Schottky diode (3) and the second Schottky diode (4) is a contact, the plus earth of the second Schottky diode (4); Described the first open-circuit line (5) and the second open-circuit line (6) series connection remember that the common port of the first open-circuit line (5) and the second open-circuit line (6) is the b contact;
The input of described low pass filter (1) links to each other with a contact by the first phase adjusted transmission line (2) as input, the output of this frequency multiplier;
The output of described band pass filter (10) is regulated transmission line (9) as frequency tripling output, the input of this frequency multiplier by the third phase position and is linked to each other with a contact;
The negative electrode of described the first Schottky diode (3) is connected with the end of b contact with the second phase adjusted transmission line (7), the other end of described the second phase adjusted transmission line (7) is as two frequency multiplication outputs of this frequency multiplier, and the other end of the second phase adjusted transmission line (7) also links to each other with the output of high frequency choke circuit (8) simultaneously.
2. multi-functional frequency multiplier according to claim 1 is characterized in that: described low pass filter (1) is so that fundamental signal can pass through, and harmonic signal can not be passed through; Described band pass filter (10) is so that harmonic signal can be passed through, and fundamental signal can not pass through; The input signal wavelength of described the first open-circuit line (5) and the second open-circuit line (6) is 1/4th of fundamental signal wavelength.
3. multi-functional frequency multiplier according to claim 1, it is characterized in that: described high frequency choke circuit (8) only allows direct current signal to pass through, and is that the first Schottky diode (3) and the second Schottky diode (4) provide biasing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310292031.4A CN103354442B (en) | 2013-07-11 | 2013-07-11 | A kind of Multifunctional frequency multiplier |
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| CN201310292031.4A CN103354442B (en) | 2013-07-11 | 2013-07-11 | A kind of Multifunctional frequency multiplier |
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| CN103354442A true CN103354442A (en) | 2013-10-16 |
| CN103354442B CN103354442B (en) | 2015-12-23 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048965A (en) * | 2015-09-08 | 2015-11-11 | 电子科技大学 | Millimeter-wave dual-band frequency doubler based on Schottky diode pairs |
| CN109150110A (en) * | 2018-07-26 | 2019-01-04 | 东南大学 | A kind of planar structure balanced type varactor doubler |
| CN109245726A (en) * | 2018-08-28 | 2019-01-18 | 东南大学 | A kind of dual-pushing type frequency multiplier suitable for extremely high frequency |
| CN109639240A (en) * | 2018-12-20 | 2019-04-16 | 电子科技大学 | Terahertz frequency multiplier based on artificial surface phasmon |
| CN110855245A (en) * | 2019-11-13 | 2020-02-28 | 电子科技大学 | Millimeter wave/terahertz power frequency doubling circuit |
| CN113098398A (en) * | 2021-04-14 | 2021-07-09 | 中国电子科技集团公司第三十八研究所 | Terahertz D-band planar frequency doubler |
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| US20020089358A1 (en) * | 2001-01-05 | 2002-07-11 | Albean David Lawrence | Digital frequency multiplier |
| CN1457559A (en) * | 2001-02-23 | 2003-11-19 | 皇家菲利浦电子有限公司 | Transceiver with frequency multiplier tracked to frequency generator |
| CN101931367A (en) * | 2010-10-12 | 2010-12-29 | 西安天伟电子系统工程有限公司 | 100MHz frequency tripler based on N-P-N triode |
| CN102270964A (en) * | 2010-02-19 | 2011-12-07 | 赫梯特微波公司 | Frequency multiplier |
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2013
- 2013-07-11 CN CN201310292031.4A patent/CN103354442B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020089358A1 (en) * | 2001-01-05 | 2002-07-11 | Albean David Lawrence | Digital frequency multiplier |
| CN1457559A (en) * | 2001-02-23 | 2003-11-19 | 皇家菲利浦电子有限公司 | Transceiver with frequency multiplier tracked to frequency generator |
| CN102270964A (en) * | 2010-02-19 | 2011-12-07 | 赫梯特微波公司 | Frequency multiplier |
| CN101931367A (en) * | 2010-10-12 | 2010-12-29 | 西安天伟电子系统工程有限公司 | 100MHz frequency tripler based on N-P-N triode |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048965A (en) * | 2015-09-08 | 2015-11-11 | 电子科技大学 | Millimeter-wave dual-band frequency doubler based on Schottky diode pairs |
| CN109150110A (en) * | 2018-07-26 | 2019-01-04 | 东南大学 | A kind of planar structure balanced type varactor doubler |
| CN109245726A (en) * | 2018-08-28 | 2019-01-18 | 东南大学 | A kind of dual-pushing type frequency multiplier suitable for extremely high frequency |
| CN109245726B (en) * | 2018-08-28 | 2022-03-08 | 东南大学 | Double-push frequency multiplier suitable for extremely high frequency |
| CN109639240A (en) * | 2018-12-20 | 2019-04-16 | 电子科技大学 | Terahertz frequency multiplier based on artificial surface phasmon |
| CN110855245A (en) * | 2019-11-13 | 2020-02-28 | 电子科技大学 | Millimeter wave/terahertz power frequency doubling circuit |
| CN113098398A (en) * | 2021-04-14 | 2021-07-09 | 中国电子科技集团公司第三十八研究所 | Terahertz D-band planar frequency doubler |
| CN113098398B (en) * | 2021-04-14 | 2022-03-18 | 中国电子科技集团公司第三十八研究所 | Terahertz D-band planar frequency doubler |
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| CN103354442B (en) | 2015-12-23 |
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