CN104218895B - harmonic mixer - Google Patents
harmonic mixer Download PDFInfo
- Publication number
- CN104218895B CN104218895B CN201410441693.8A CN201410441693A CN104218895B CN 104218895 B CN104218895 B CN 104218895B CN 201410441693 A CN201410441693 A CN 201410441693A CN 104218895 B CN104218895 B CN 104218895B
- Authority
- CN
- China
- Prior art keywords
- network
- roads
- signal
- local oscillation
- oscillation signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Superheterodyne Receivers (AREA)
- Transmitters (AREA)
Abstract
The invention discloses harmonic mixer, including：Radio frequency (RF) signal circuit matching network, local oscillator (LO) signal circuit matching radio frequency band resistance network, intermediate frequency (IF) low pass signal Circuit Matching network；According to harmonic mixing number (N), identified corresponding mixer diode way N, N road RF signals and LO signals power division network and LO signal phase-shift networks.Harmonic mixer proposed by the present invention can realize the recycling of idle frequence signal, without designing corresponding signal recycling network, reduce the conversion loss of harmonic mixer, improve the isolation between RF, LO, IF signal port.
Description
Technical field
It is suitable for exploitation microwave the present invention relates to microwave electronic device field more particularly to one kind, millimeter involves submillimeter
The low conversion loss of wave, the harmonic mixer of high port isolation.
Background technology
Frequency mixer is indispensable component in microwave electron system, is widely used in communication, radar, remote sensing and test
The fields such as instrument, performance quality have extremely important influence to the occasion applied.At present, microwave fundamental mixer technology
It is ripe, MMICization is realized substantially, just involves the development of submillimeter frequency range toward millimeter, but harmonic mixer particularly high order is humorous
The research of wave mixing device is less, and Research Challenges are to realize low conversion loss, the high-isolation of higher hamonic wave mixing.
Harmonic mixer compared with fundamental mixer, solves high working frequency, Gao Xing as one of two major class of frequency mixer
The problem of energy local vibration source designing technique difficulty is big, of high cost, but harmonic mixer conversion loss is high, circuit design is relative complex,
Therefore developing the harmonic mixers of the performance indicators such as low conversion loss, high port isolation, there are technical problems.
Invention content
In view of this, in order to solve deficiency of the prior art, the present invention proposes a kind of harmonic mixer.This hair
It is bright that low conversion loss, high port isolation, high 1dB compression points, the simple purpose of circuit design can be achieved.
One embodiment of the invention proposes a kind of higher hamonic wave mixting circuit, including：Radio frequency matching network (1), local oscillator
With radio frequency band resistance network (2), mid-frequency low-pass matching network (3), N roads radiofrequency signal power division network (4), the local oscillation signal phase shift of N roads
Network (5), N roads local oscillation signal power division network (6), N roads mixer diode (7)；
Wherein, local oscillation signal passes through the N roads local oscillation signal power division network (6), which is somebody's turn to do
N roads mixer diode (7)；Radiofrequency signal passes through the radio frequency matching network (1)；Radiofrequency signal and local oscillation signal are in mixer diode
It is mixed, local oscillation signal power division network presses down other harmonic mixing signals that mixer diode nonlinear characteristic generates
System；And the intermediate-freuqncy signal that required harmonic mixing goes out carries out power combing in A points, finally by the mid-frequency low-pass matching network
(3) intermediate-freuqncy signal is exported.
It is improved as one, the cathode (or anode) of N roads RF signals power division network (4) output terminal and N roads mixer diode (7)
Interconnection, N roads LO signals power division network (6) output terminal and the LO signal phase shifts of N roads network (5) input terminal interconnect；The LO signal phase shifts of N roads
Network (5) output terminal and the anode (or cathode) of N roads mixer diode (7) interconnect.
Further embodiment of this invention also proposed a kind of higher hamonic wave mixting circuit, including：Radio frequency matching network (1), this
Shake matching radio frequency band resistance network (2), mid-frequency low-pass matching network (3), N roads radiofrequency signal power division network (4), N roads local oscillation signal
Phase-shift network (5), N roads local oscillation signal power division network (6), N roads mixer diode array (8)；
Wherein, local oscillation signal passes through the N roads local oscillation signal power division network (6), which is somebody's turn to do
N roads mixer diode array (8)；Radiofrequency signal passes through the radio frequency matching network (1)；Radiofrequency signal and local oscillator n times harmonic signal
It is mixed；The required intermediate-freuqncy signal obtained carries out power combing in A points, again by local oscillation signal power division network to other humorous
Wave mixing signal is inhibited, and intermediate-freuqncy signal is exported finally by the mid-frequency low-pass matching network (3).
It is improved as one, the cathode of N roads RF signals power division network (4) output terminal and N roads mixer diode array (8) or just
Pole interconnection, N roads LO signals power division network (6) output terminal and the LO signal phase shifts of N roads network (5) input terminal interconnect；N roads LO signal phases
It moves network (5) output terminal and the positive or negative pole of N roads mixer diode array (8) interconnects.
It is improved as one, radio frequency matching network, mid-frequency low-pass matching network, local oscillator matching radio frequency band resistance network can be used
High Low ESR or branch nodel line cable architecture.
It is improved as one, Wilkinson power divider or 90 degree of electric bridges can be used in radio frequency and local oscillator N roads signal power division network
Structure.
It is improved as one, transmission line structure also can be used in local oscillation signal phase-shift network.
Advantages of the present invention：Its object is to be directed to, harmonic mixer designing technique difficulty is big, idle frequence signal
Recycle the technical barriers such as design is complicated, conversion loss is high, isolation is low.
Description of the drawings
Fig. 1 is one embodiment of the invention harmonic mixer circuit structure diagram；
Fig. 2 is further embodiment of this invention harmonic mixer circuit structure diagram；
Fig. 3 is another embodiment of the present invention four-time harmonic mixer figure.
Specific embodiment
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is one embodiment of the invention harmonic mixer circuit structure diagram.Referring to Fig. 1, high order provided by the invention
Harmonic mixing circuit, the circuit include RF matching networks 1, LO matching radio frequency band resistances network 2, IF mid-frequency low-pass matching network 3, N
Road RF signals power division network 4, N roads LO signal phase shifts network 5, N roads LO signals power division network 6, N roads mixer diode 7；
The cathode of 4 output terminal of N roads RF signals power division network of higher hamonic wave mixting circuit and N roads mixer diode 7 is (or just
Pole) interconnection, 6 output terminal of N roads LO signals power division network and the interconnection of 5 input terminal of N roads LO signal phase shifts network；The LO signal phase shifts of N roads
5 output terminal of network and the anode (or cathode) of N roads mixer diode 7 interconnect.The N roads mixer diode of higher hamonic wave mixting circuit
7 also can substitute realization by N roads mixer diode array 8.
Fig. 2 is further embodiment of this invention harmonic mixer circuit structure diagram.As shown in Fig. 2, the embodiment is attached
It is and upper corresponding in the structure of the embodiment corresponding to its detailed description of the identical incomplete structure of a upper embodiment in graph structure
One embodiment different structure is：N roads mixer diode is preferably by, N roads mixer diode array 8.
By increasing number of the N roads mixer diode per road diode, the effective resistance of often road diode can be reduced, and then
The conversion loss of frequency mixer is reduced, while harmonic mixer 1dB compression points can also be effectively improved.
Radio frequency band resistance network 2, IF mid-frequency low-pass matching network 3, N roads are matched with RF matching networks 1, the LO in Fig. 1 below
It is illustrated for RF signals power division network 4, N roads LO signal phase shifts network 5, N roads LO signals power division network 6, but the present invention
Protection domain is not limited to the embodiment.
Fig. 3 is the four-time harmonic mixer of specific implementation, for ease of interconnecting or integrating with other circuits, RF, LO letter
Number input and IF signal output ports all employ 50 ohmages of standard.Wherein, LO signals pass through 90 degree of electric bridges and transmission
After line phase shift, four road work(point are realized, and the LO signal phase differences for being transmitted to four mixer diodes are followed successively by 90 degree, i.e. local oscillator N
Road signal power division network and phase-shift network are realized using the composite structure of 90 degree of electric bridges and transmission line.RF signals four road work(point is then adopted
Realize that it is transmitted to mixer diode with Wilkinson power divider.IF signal circuits then use LO signal quarter-waves (λLO/
4) ground connection transmission line is realized, leaks into the signal of present networks then by RF signal quarter-waves (λRF/ 4) open-circuit line is realized back
It receives and utilizes, form RF signal band-stop responses.The input matching of IF and RF signals employs high low-impedance line and realizes impedance matching, simultaneously
IF Signal Matchings network can also realize the belt-resistance function to RF signals.
As another embodiment, in the structure of the embodiment, corresponding to a upper embodiment identical incomplete structure its in detail
Illustrate, corresponding in the structure of the embodiment, be with upper embodiment different structure：Four road mixer diodes are preferably adopted
With, four road mixer diode arrays.
The present invention proposes the higher hamonic wave mixting circuit structure based on mixer diode, can be with using the circuit structure
According to required harmonic mixing times N, determine corresponding diode way N and N roads work(point and phase-shift network, make idle frequence
Signal is recycled by phase cancellation, the isolation that can not only be effectively reduced in this way between conversion loss, raising port
Degree, and improve to increase and improve the 1dB compression points of frequency mixer per road mixer diode number while also reduce each diode
The reduction of mixer conversion loss is furthermore achieved in the effective resistance of array.
The present invention realizes the n times harmonic device N roads IF electric current items (︱ of output by setting N roads LO signal phase-shift networks
NfLO-fRF︱) with addition, other low-order harmonic mixing current item (︱ (N-1) fLO-fRF︱, n times more than mixing current item is due to width
Degree is smaller, can be neglected), frequency terminal A passes through summation in the output, it is known that its electric current and be zero, therefore terminal A is humorous to low order
Wave mixing electric current item forms open circuit point, i.e. this part mixing current realizes the recycling to it in diode loop internal flow
It utilizes, reaches the purpose for reducing harmonic mixer conversion loss and harmonic mixer design difficulty.
The present invention leaks into every road LO signals of the i.e. terminal A in RF or IF ends, and phase shift angle is followed successively by (2k π) N, leakage
LO signal energies in the case of the same, by summing to its amplitude, calculate the total LO signal powers for understanding to leak into terminal A
Amplitude and be zero forms short dot in the point LO signals, realizes the total reflection of LO signals, you can realizes LO ports to RF and IF ends
The preferable isolation of mouth.
For 2K π, (n times harmonic mixer RF signal frequencies are approximate by leaking into the total phase shift of RF signals at LO ends by the present invention
N times for LO signal frequencies), it is added at B points with phase in RF signals, LO signal circuits matching network can be designed as RF letters simultaneously
Number bandstop filter forms short circuit or open circuit point in B points, to realize preferable isolation of the RF ports to LO ports.
The foregoing is merely the present invention better embodiment, protection scope of the present invention not using the above embodiment as
Limit, as long as equivalent modification that those of ordinary skill in the art are made according to disclosed content and variation, should all be included in power
In the protection domain that sharp claim is recorded.
Claims (7)
1. a kind of higher hamonic wave mixting circuit, including：Radio frequency matching network (1), local oscillator matching radio frequency band resistance network (2), intermediate frequency
Low pass matching network (3), N roads radiofrequency signal power division network (4), N roads local oscillation signal phase-shift network (5), N roads local oscillation signal work(point
Network (6), N roads mixer diode (7)；
Wherein, local oscillation signal passes through the N roads local oscillation signal power division network (6), the N roads local oscillation signal phase-shift network (5), the N roads
Mixer diode (7)；Radiofrequency signal passes through the radio frequency matching network (1)；Radiofrequency signal and local oscillation signal mixer diode into
Row mixing, local oscillation signal power division network inhibit the local oscillator harmonic signal that mixer diode nonlinear characteristic generates；It is described
Signal after mixing carries out power combing, and intermediate-freuqncy signal is exported finally by the mid-frequency low-pass matching network (3)；
Wherein, radio frequency matching network (1), mid-frequency low-pass matching network and N roads radiofrequency signal power division network (4) input terminal is public
Endpoint is A contacts；The common end of local oscillation signal matching radio frequency band resistance network (2) and N roads local oscillation signal power division network (6) input terminal
Point is B contacts.
2. a kind of higher hamonic wave mixting circuit, including：Radio frequency matching network (1), local oscillator matching radio frequency band resistance network (2), intermediate frequency
Low pass matching network (3), N roads radiofrequency signal power division network (4), N roads local oscillation signal phase-shift network (5), N roads local oscillation signal work(point
Network (6), N roads mixer diode array (8)；
Wherein, local oscillation signal passes through the N roads local oscillation signal power division network (6), the N roads local oscillation signal phase-shift network (5), the N roads
Mixer diode array (8)；Radiofrequency signal passes through the radio frequency matching network (1)；Radiofrequency signal and local oscillation signal are mixed；Institute
It states the signal after mixing and carries out power combing, intermediate-freuqncy signal is exported finally by the mid-frequency low-pass matching network (3)；
Wherein, radio frequency matching network (1), mid-frequency low-pass matching network and N roads radiofrequency signal power division network (4) input terminal is public
Endpoint is A contacts；The common end of local oscillation signal matching radio frequency band resistance network (2) and N roads local oscillation signal power division network (6) input terminal
Point is B contacts.
3. higher hamonic wave mixting circuit according to claim 1, it is characterised in that：N roads RF signals power division network (4) output terminal
With the interconnection of cathode or anode, N roads LO signals power division network (6) output terminal and the LO signal phase shifts of N roads of N roads mixer diode (7)
Network (5) input terminal interconnects；N roads LO signal phase shifts network (5) output terminal and the positive or negative pole of N roads mixer diode (7) are mutual
Even.
4. higher hamonic wave mixting circuit according to claim 2, it is characterised in that：N roads RF signals power division network (4) output terminal
With the interconnection of cathode or anode, N roads LO signals power division network (6) output terminal and the N roads LO signals of N roads mixer diode array (8)
Phase-shift network (5) input terminal interconnects；The anode of N roads LO signal phase shifts network (5) output terminal and N roads mixer diode array (8)
Or cathode interconnection.
5. higher hamonic wave mixting circuit according to claim 1 or claim 2, it is characterised in that：Radio frequency matching network, mid-frequency low-pass
High low-impedance line or detail cable architecture can be used in distribution network, local oscillator matching radio frequency band resistance network.
6. higher hamonic wave mixting circuit according to claim 1 or claim 2, it is characterised in that：Radio frequency and local oscillator N roads signal work(subnetting
The adoptable Wilkinson power divider of network or 90 degree of bridge structures.
7. higher hamonic wave mixting circuit according to claim 1 or claim 2, it is characterised in that：Local oscillation signal phase-shift network can also be adopted
Use transmission line structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410441693.8A CN104218895B (en) | 2014-09-01 | 2014-09-01 | harmonic mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410441693.8A CN104218895B (en) | 2014-09-01 | 2014-09-01 | harmonic mixer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104218895A CN104218895A (en) | 2014-12-17 |
| CN104218895B true CN104218895B (en) | 2018-06-12 |
Family
ID=52100095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410441693.8A Active CN104218895B (en) | 2014-09-01 | 2014-09-01 | harmonic mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104218895B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108400442A (en) * | 2018-02-05 | 2018-08-14 | 广东欧珀移动通信有限公司 | Antenna module, electronic device and improvement aerial radiation refer to calibration method |
| CN111628260A (en) * | 2020-06-28 | 2020-09-04 | 中国电子科技集团公司第二十研究所 | Power distribution network with high power capacity |
| CN113534056B (en) * | 2021-06-24 | 2024-01-19 | 南京信息工程大学 | Broadband millimeter wave second harmonic mixer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1444309A (en) * | 2002-03-11 | 2003-09-24 | 香港城市大学 | Micrometer wave and milimeter wave guartic harmonic mixer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7167698B2 (en) * | 2002-11-07 | 2007-01-23 | Northrop Grumman Corporation | Balanced sub-harmonic mixer |
-
2014
- 2014-09-01 CN CN201410441693.8A patent/CN104218895B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1444309A (en) * | 2002-03-11 | 2003-09-24 | 香港城市大学 | Micrometer wave and milimeter wave guartic harmonic mixer |
Non-Patent Citations (1)
| Title |
|---|
| "三毫米波镜像抑制谐波混频器的研究";赵梦娟;《中国优秀硕士学位论文全文数据库 信息科技辑》;20090415(第04期);第6页7段、7页3段、40页3-5段、42页2段、45页1-4段、47页2段、48页1-2段、56页2段，图2-6、4-11、5-1、5-11 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104218895A (en) | 2014-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2677930C1 (en) | Device and method for testing a two-frequency nonlinear vector of network parameters | |
| CN102637938B (en) | Double-frequency power divider and design method thereof | |
| Bonache et al. | Application of composite right/left handed (CRLH) transmission lines based on complementary split ring resonators (CSRRs) to the design of dual-band microwave components | |
| CN103390786B (en) | A kind of three port microstrip power splitters with any merit proportion by subtraction and phase output characteristic | |
| CN104218895B (en) | harmonic mixer | |
| CN104821792A (en) | Mixer and method capable of outputting local oscillation harmonic amplitude through cancellation and suppression | |
| CN103684269A (en) | Broadband-tunable 1mm subharmonic mixer | |
| Pushpa et al. | A dual-band subharmonic mixer with high RF-IF isolation | |
| Mohyuddin et al. | Design of a compact single-balanced mixer for UWB applications | |
| CN113534056B (en) | Broadband millimeter wave second harmonic mixer | |
| Maity et al. | Design of a single balanced diode mixer with high LO/RF and LO/IF isolation in C-band test loop translator | |
| CN113098401B (en) | Terahertz D-band fourth harmonic mixer | |
| Bose et al. | Design of a wideband down-conversion mixer in X-band | |
| Zhan et al. | Design of millimeter-wave wideband mixer with a novel IF block | |
| Nguyen et al. | Design and implement a single balanced mixer at S band | |
| CN208209902U (en) | A kind of W waveband broadband subharmonic mixing structure | |
| Guo et al. | Design of a millimeter-wave third-harmonic mixer using substrate integrated waveguide balun | |
| CN104852109B (en) | A kind of two-way alien frequencies signal combining output device, micro-strip plate | |
| Mabood et al. | Design of a RF Mixer for Frequency Band shifter | |
| Zhang et al. | The Design of a 200-240-GHz Sub-Harmonic Mixer Based on RAL’s Planar Schottky Diodes | |
| CN202721648U (en) | Single-balanced mixer easy to debug | |
| CN115208323A (en) | Ultra-wideband odd harmonic mixer for spread spectrum and frequency spectrograph | |
| CN110380690B (en) | Terahertz waveguide biased harmonic mixer | |
| Zhang et al. | Optimization and design of a suspended 215–235-GHz subharmonically pumped mixer for space-borne radiometers | |
| CN207910736U (en) | Frequency mixer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |