CN116232308A - Phase temperature compensation circuit and device - Google Patents
Phase temperature compensation circuit and device Download PDFInfo
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- CN116232308A CN116232308A CN202310491564.9A CN202310491564A CN116232308A CN 116232308 A CN116232308 A CN 116232308A CN 202310491564 A CN202310491564 A CN 202310491564A CN 116232308 A CN116232308 A CN 116232308A
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- H—ELECTRICITY
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- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/003—Modifications for increasing the reliability for protection
- H03K19/00369—Modifications for compensating variations of temperature, supply voltage or other physical parameters
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/003—Modifications for increasing the reliability for protection
- H03K19/00323—Delay compensation
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/0175—Coupling arrangements; Interface arrangements
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Abstract
The application discloses phase temperature compensation circuit and device includes: the input end is an input end of the coupler; the output end is an isolation port of the coupler; the matching network is connected with the through end and the coupling end of the coupler and is used for expanding the phase compensation range; and the through end and the coupling end of the coupler are respectively connected with the variable capacitor through the matching network. The invention carries out temperature phase compensation based on the coupler, the coupler is an all-pass network within a certain range, and no energy is wasted. The temperature coefficient current is converted into temperature coefficient voltage, the variable capacitance is controlled, the reflection coefficient of the interface of the coupler is changed, the capacitance value of the capacitor with temperature information is converted into phase difference through the coupler, and the temperature and phase compensation is completed at minimum cost due to the characteristics of constant insertion loss, small area, high precision and low cost.
Description
Technical Field
The present disclosure relates to the field of circuits, and in particular, to a phase temperature compensation circuit and a device.
Background
The clock synchronous link is widely applied to high-speed transmission circuits and phased array radar communication circuits. As the transmission speed of communication systems increases, the clock rate increases, and the requirement for clock synchronization is also increasing, so that the synchronization between multiple clock links, especially how to compensate for the delay variation introduced by temperature under high and low temperature conditions, becomes a great challenge for clock circuit design.
The related art mainly provides a common temperature phase compensation scheme in a clock synchronous link, a variable capacitor is added between driving stages in the clock link, and the capacitance value of the variable capacitor is changed under different temperature conditions, so that the inter-stage delay is changed. There are three problems with this approach: the single capacitor has a limited adjustment range, and the single capacitor and the resistor can contribute 90 DEG phase shift at most; the parallel capacitor has low-pass characteristic, the higher the clock speed is, the more energy is lost on the capacitor, the different capacitance values have different capacitance losses, and the clock energy can be influenced by changing the capacitance value and the time delay of the capacitance value; the capacitance compensation range is small, the capacitance-phase response does not necessarily have monotonic characteristics, and the curve is not smooth. In addition, based on a Phase Shifter (PS) phase temperature compensation scheme, the phase of the phase shifter is changed at different temperatures, and delay changes at different temperatures are compensated. However, this solution also has two problems: the accuracy of the phase shifter is limited, for example, the clock path comprises a 4-bit (bits) phase shifter, the accuracy is only 22.5 degrees, the higher accuracy requirement cannot be met, the high-accuracy phase shifter is required to be additionally designed, the temperature of each clock path is monitored, the temperature code word conversion is carried out after the temperature is obtained, the system is complex, the resource cost is high, and the cost is high.
The description of the background art is only for the purpose of facilitating an understanding of the relevant art and is not to be taken as an admission of prior art.
Disclosure of Invention
Accordingly, embodiments of the present invention are directed to a phase temperature compensation circuit and a phase temperature compensation device.
In a first aspect, an embodiment of the present invention provides a phase temperature compensation circuit, including:
the input end is an input end of the coupler;
the output end is an isolation port of the coupler;
the matching network is connected with the through end and the coupling end of the coupler and is used for expanding the phase compensation range;
and the through end and the coupling end of the coupler are respectively connected with the variable capacitor through the matching network.
The circuit further comprises a temperature coefficient voltage generating circuit, and the temperature coefficient voltage generating circuit generates a temperature coefficient voltage to control the variable capacitor.
The coupler comprises a first coupler and a second coupler, wherein the first coupler is connected with a first variable capacitor, the second coupler is connected with a second variable capacitor, the first variable capacitor is connected with a first temperature coefficient temperature induction current source, the second variable capacitor is connected with a second temperature coefficient temperature induction current source, and the control voltage of the first channel and the second channel is the temperature coefficient current generated by the first temperature induction current source and the second temperature coefficient temperature induction current source multiplied by a resistor.
The temperature difference between the first channel and the second channel is converted into a current difference, the current difference is converted into a voltage difference through a resistor, the voltage difference influences the capacitance value of the first variable capacitor and the second variable capacitor, and the change of the capacitance value of the variable capacitor causes the phase difference of the input and output of the quadrature coupler of the first channel and the second channel to perform phase temperature compensation.
An inductor is connected in series between the coupler and the variable capacitor.
The voltage of the first channel controls the variable capacitance of the first channel, temperature difference information between the first channel and the second channel is converted into current difference, the current difference is converted into voltage difference through a resistor, the voltage difference influences a variable capacitance value, the change of the variable capacitance value causes the phase difference of input and output of the first channel and the second channel quadrature coupler, the temperature difference of the first channel and the second channel is converted into the capacitance difference of the first channel and the second channel, the load impedance of the first channel and the second channel is influenced through an inductor, the input and output phase difference of the first channel and the second channel quadrature coupler is changed, so that temperature phase compensation is carried out, and the reflection coefficient of a load end of the coupler is the reflection coefficient after the capacitor and the inductor are connected in series.
The phase shift phase difference calculation formula of the first channel and the second channel is as follows:
where X1 is the load impedance of the first channel and X2 is the load impedance of the second channel.
Wherein the temperature coefficient voltage of the first channel and the second channel is in linear relation with temperature, and the variable capacitance is in monotonic relation with control voltage.
In a third aspect, an embodiment of the present invention provides a phase temperature compensation apparatus, including:
the input module is an input end of the coupler;
the output module is an isolated port of the coupler;
the matching network module is connected with the through end and the coupling end of the coupler and is used for expanding the phase compensation range; and the through end and the coupling end of the coupler are respectively connected with the variable capacitor through the matching network.
In the phase temperature compensation circuit used in the embodiment of the invention, a temperature phase compensation scheme with high precision, low complexity and low cost is provided for solving the problems of delay and phase offset caused by different channel temperatures in a high-speed clock synchronous circuit. The invention carries out temperature phase compensation based on the coupler, the coupler is an all-pass network within a certain range, and no energy is wasted. The temperature coefficient current is converted into temperature coefficient voltage, the variable capacitance is controlled, the reflection coefficient of the interface of the coupler is changed, the capacitance value of the capacitor with temperature information is converted into phase difference through the coupler, and the temperature and phase compensation is completed at minimum cost due to the characteristics of constant insertion loss, small area, high precision and low cost.
Additional optional features and technical effects of embodiments of the invention are described in part below and in part will be apparent from reading the disclosure herein.
Drawings
Embodiments of the present invention will hereinafter be described in conjunction with the appended drawings, wherein like or similar reference numerals denote like or similar elements, and wherein:
FIG. 1 illustrates a phase temperature compensation circuit according to an embodiment of the present invention;
FIG. 2 shows a circuit diagram of a phase temperature compensation scheme based on a coupler, a series inductance and a variable capacitance according to an embodiment of the invention;
FIG. 3 shows a circuit diagram of a phase temperature compensation scheme based on a coupler, a shunt inductance and a variable capacitance according to an embodiment of the invention;
FIG. 4 illustrates a phase temperature compensation curve based on different temperature coefficients according to an embodiment of the present invention;
FIG. 5 shows a temperature phase profile based on a coupler, a series inductance and a variable capacitance according to an embodiment of the invention;
fig. 6 shows a temperature phase profile based on a coupler, a shunt inductance and a variable capacitance according to an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and the accompanying drawings, in order to make the objects, technical solutions and advantages of the present invention more apparent. The exemplary embodiments of the present invention and the descriptions thereof are used herein to explain the present invention, but are not intended to limit the invention.
The term "comprising" and variations thereof as used herein means open ended, i.e., "including but not limited to. The term "or" means "and/or" unless specifically stated otherwise. The term "based on" means "based at least in part on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment. The term "another embodiment" means "at least one additional embodiment". The terms "first," "second," and the like, may refer to different or the same object. Other explicit and implicit definitions are also possible below.
The clock synchronous link is widely applied to high-speed transmission circuits and phased array radar communication circuits. As the transmission speed of communication systems increases, the clock rate increases, and the requirement for synchronization of clocks is also increasing, synchronization between multiple clock links becomes a challenge for clock circuit design.
The related art gives a phase temperature compensation scheme based on a Phase Shifter (PS), which changes the phase of the Phase Shifter (PS) at different temperatures, compensating for delay variations at different temperatures. However, this solution also has two problems: the accuracy of the phase shifter is limited, for example, the clock path comprises a 4-bit (bits) phase shifter, the accuracy is only 22.5 degrees, the higher accuracy requirement cannot be met, the high-accuracy phase shifter is required to be additionally designed, the temperature of each clock path is monitored, the temperature code word conversion is carried out after the temperature is obtained, the system is complex, the resource cost is high, and the cost is high.
The related art mainly provides a common temperature phase compensation scheme in a clock synchronous link, a variable capacitor is added between driving stages in the clock link, and the capacitance value of the variable capacitor is changed under different temperature conditions, so that the inter-stage delay is changed. There are three problems with this approach: the single capacitor has a limited adjustment range, and the single capacitor and the resistor can contribute 90 DEG phase shift at most; the parallel capacitor has low-pass characteristic, the higher the clock speed is, the more energy is lost on the capacitor, the capacitor loss is different in different capacitance values, the clock energy is also influenced by changing the capacitance value and the time delay of the capacitor, and the compensation range is small. In addition, based on a Phase Shifter (PS) phase temperature compensation scheme, the phase of the phase shifter is changed at different temperatures, and delay changes at different temperatures are compensated. However, this solution also has two problems: the accuracy of the phase shifter is limited, for example, the clock path comprises a 4-bit (bits) phase shifter, the accuracy is only 22.5 degrees, the higher accuracy requirement cannot be met, the high-accuracy phase shifter is required to be additionally designed, the temperature of each clock path is monitored, the temperature code word conversion is carried out after the temperature is obtained, the system is complex, the resource cost is high, and the cost is high.
The difference of thermal environments at different positions of the chip can cause temperature difference of different clock channels, the temperature difference of different clock channels can introduce additional clock delay, and for high-speed application of clock delay sensitivity, an additional delay/phase compensation unit needs to be introduced to compensate delay/phase offset caused by temperature change. Aiming at the problem of delay/phase shift caused by different channel temperatures in a high-speed clock synchronous circuit, the invention provides a temperature phase compensation scheme with high precision, low complexity and low cost.
As shown in fig. 1, the present application proposes a phase temperature compensation circuit, including:
the input end is an input end of the coupler;
the output end is an isolation port of the coupler;
the matching network is connected with the through end and the coupling end of the coupler and is used for expanding the phase compensation range;
and the through end and the coupling end of the coupler are respectively connected with the variable capacitor through the matching network.
The circuit further includes a temperature coefficient voltage generation circuit that generates a temperature coefficient voltage to control the variable capacitance.
Therefore, in the phase temperature compensation circuit structure, the input end is the input end 1a of the 1 coupler, the output end is the coupler isolation port 1c, the straight-through 1b and the coupling end 1d of the coupler are connected with the same 3 variable capacitor through the 2 matching network, and the control voltage of the 3 variable capacitor is from the 4 temperature coefficient voltage generation circuit. The current with the temperature coefficient and the adjustable 4a slope passes through the 4c resistor to generate voltage with the 4b slope which is adjustable and is in direct proportion to the temperature, and the value of the variable power supply Rong Rong is controlled to generate 3 capacitors with the temperature coefficient. And changing the absolute value or sign of the temperature coefficient of the 4a current, and changing the size of the 4c resistor to obtain different temperature phase compensations. The additional matching device inductance or capacitance is added with 2, so that a larger adjustment range can be obtained.
As shown in fig. 2 and 3, an additional matching network is added to the load end of the coupler on the basis of the variable capacitance, so that the slope of a phase-temperature curve is changed, and the phase compensation range is enlarged. For example, in fig. 2, an inductor Ls is connected in series, and at this time, the reflection coefficient of the load end is not the reflection coefficient of a single capacitor, but the reflection coefficient of a capacitor connected in series with the inductor string is larger, and the angle range of the reflection coefficient is also enlarged. An inductor is connected in series between the coupler and the variable capacitor.
In one embodiment, a channel of the coupler, which is connected to the variable capacitor through the channel, is a first channel, a channel of the coupling end, which is connected to the variable capacitor, is a second channel, and control voltages of the first channel and the second channel are adjustable temperature coefficient voltages generated by an adjustable temperature coefficient current source. The temperature difference between the first channel and the second channel is converted into a current difference, the current difference is converted into a voltage difference through a resistor, the voltage difference influences the capacitance value of the variable capacitor, and the change of the capacitance value of the variable capacitor causes the phase difference of the input and output of the quadrature coupler of the first channel and the second channel to perform phase temperature compensation. The load end is connected in series with an inductor.
The coupler comprises a first coupler and a second coupler, a first variable capacitor, a second variable capacitor, a first temperature coefficient temperature induction current source, a second temperature coefficient temperature induction current source, a first channel connected with the first variable capacitor, a second channel connected with the second variable capacitor, and a control voltage of the first channel and the second channel is the temperature coefficient current generated by the first temperature induction current source and the second temperature induction current source multiplied by a resistor.
The voltage of the first channel controls the variable capacitance of the first channel, the temperature difference information between the first channel and the second channel is converted into a current difference, the current difference is converted into a voltage difference through a resistor, the voltage difference affects the capacitance value of the variable capacitance, the change of the capacitance value of the variable capacitance causes the phase difference of the input and output of the quadrature coupler of the first channel and the second channel, so that temperature phase compensation is performed, and the reflection coefficient of the load end is the reflection coefficient after the capacitance and the inductance are connected in series.
The phase shift phase difference calculation formula of the first channel and the second channel is as follows:
where X1 is the load impedance of the first channel and X2 is the load impedance of the second channel.
In this embodiment, the temperature coefficient voltages of the first channel and the second channel are in a linear relationship with temperature, and the variable capacitance is in a monotonic relationship with the control voltage.
The present application provides an embodiment one, specifically explaining the technical principles of the present application: as shown in fig. 1, the 1 quadrature coupler 1b is connected through, the 1d coupling end load is a 3 variable capacitor, the control voltage 4b of the first channel is fixed, the control voltage 4b of the second channel is derived from the adjustable temperature coefficient voltage generated after the 4a adjustable temperature coefficient (a) current source (i=i0+a×t, T is temperature) flows through the 4c fixed resistor R, and it is noted that vt=ri0+a×r×t, and Vt controls the load variable capacitor of the coupler.
The degree θ of phase shift between couplers 1a and 1c is determined by the load side reflection coefficients of 1b and 1 d:
wherein XL is a 1b pass through, 1d coupled end load, if a separate load capacitor:
the phase shift phase difference delta theta of the first channel and the second channel is determined by the reflection coefficients of load end impedances (X1 and X2) with two different temperatures and different capacitance values:
x1, X2 are the load impedances of the 1,2 channels, which are pure capacitive loads Cvar1, cvar2:
the capacitance cva1=1/(z0ω0 ∈max) of the fixed first channel, Z0 is the characteristic impedance of the coupler, and ω0 is the operating frequency.
The capacitance of 3 in the second channel over a range is approximately linear with the 4b control voltage Vt:
if C2 is positive, the two channel temperatures are between-40 and 125 DEG, and the beta phase temperature compensation curve of the ratio delta theta to the channel temperature is shown in figure 4. If C2 is negative, the temperature-phase compensation curve slopes inversely. Increasing C2 to twice the original, increasing the slope of the temperature-phase compensation curve, and obtaining a larger compensation range. The phase compensation range based on the reflection type phase temperature compensation technology reaches over +/-10 degrees, the curve is smooth, the precision is high, and the insertion loss is basically kept unchanged in the compensation process. Is a low-cost and high-precision temperature phase compensation scheme.
On the basis of the above embodiment, the 4b voltage Vt of the first channel, which is linearly dependent on temperature, directly controls the 3 variable capacitance of the first channel. The temperature difference information between the first channel and the second channel is converted into a 4a current difference value, the 4a current difference value is converted into a 4b voltage difference value through a 4c resistor, the voltage difference influences a 3 variable capacitance value, and the change of the 3 variable capacitance value causes the phase difference of the input and output of the quadrature coupler 1a to 1c of the first channel and the second channel, so that temperature-phase compensation is performed.
In addition, the present application further provides a second embodiment, which is specifically as follows:
as shown in fig. 2, an inductor Ls is connected in series, and the reflection coefficient at the load end is not the reflection coefficient of a single capacitor, but the reflection coefficient after a capacitor is connected in series with the inductor string, so that the angle range of the reflection coefficient is larger, and the temperature phase compensation range is also enlarged. Taking two channels as an example, the control voltage 4b of the first channel and the capacitor Cvar1 are fixed, and the phase difference Δθ between the two channels is:
taking ls= (1+αmax)/(2αmamaω02cvar 1) and the variable capacitance Cvar1 of the fixed first channel as 1/(z0ω0 ≡αmax), the 3 capacitance value in the second channel is approximately in linear relation with the 4b control voltage Vt, and the series lc temperature phase compensation curve of fig. 5 can be obtained. The slope is doubled at the same current ratio compared with the same current temperature coefficient in fig. 4.
Based on the second embodiment, the voltage Vt of 4b, which is linear with temperature, directly controls the 3-variable capacitance of the first channel. The temperature difference information between the first channel and the second channel is converted into a 4a current difference value, the 4a current difference value is converted into a 4b voltage difference value through a 4c resistor, the voltage difference influences a 3 variable capacitance value, and the change of the 3 variable capacitance value causes the phase difference of the input and output of the quadrature coupler 1a to 1c of the first channel and the second channel, so that temperature-phase compensation is performed.
In addition, the present application further provides another embodiment, specifically as follows:
as shown in fig. 3, an inductance Lp is connected in parallel, and at this time, the reflection coefficient of the load end is not the reflection coefficient of a single capacitor, but the reflection coefficient of a capacitor connected in parallel with the inductance is larger, and the temperature phase compensation range is also enlarged. Taking two channels as an example, the control voltage 4b of the first channel and the capacitor Cvar1 are fixed, and the phase difference Δθ between the two channels is:
taking lp=2/[ (1+αmax)/ω02cvar1] and fixing the variable capacitance Cvar1 of the first channel to be 1/(z0ω0 ≡αmax), the capacitance value of 3 in the second channel is approximately in linear relation with the control voltage Vt of 4b, and the parallel lc temperature phase compensation of fig. 6 can be obtained. The slope is doubled at the same current ratio compared with the single capacitive load and current temperature coefficient of fig. 4.
On the basis of the third embodiment, the first channel's 3-variable capacitance is directly controlled by the temperature-proportional 4b voltage Vt. The temperature difference information between the first channel and the second channel is converted into a 4a current difference value, the 4a current difference value is converted into a 4b voltage difference value through a 4c resistor, the voltage difference influences a 3 variable capacitance value, and the change of the 3 variable capacitance value causes the phase difference of the input and output of the quadrature coupler 1a to 1c of the first channel and the second channel, so that temperature-phase compensation is performed.
By comparison, it can be found that the conventional scheme converts temperature information into capacitance, and changes the delay of the signal link through capacitance change. However, adding capacitance to the link is equivalent to introducing a low-pass network, which wastes signal energy and has poor accuracy.
The invention carries out temperature phase compensation based on the coupler, the coupler is an all-pass network within a certain range, and no energy is wasted. The temperature coefficient current is converted into temperature coefficient voltage, the variable capacitance is controlled, the reflection coefficient of the interface of the coupler is changed, the capacitance value of the capacitor with temperature information is converted into phase difference through the coupler, and the temperature/phase compensation is completed at minimum cost due to the characteristics of constant insertion loss, small area, high precision and low cost.
In addition, the application also provides a phase temperature compensation device, which comprises:
the input module is an input end of the coupler;
the output module is an isolated port of the coupler;
the matching network module is connected with the output end of the coupler and is used for expanding the phase compensation range; and the through end and the coupling end of the coupler are respectively connected with the variable capacitor through the matching network.
It will be appreciated by those skilled in the art that embodiments of the present description may be provided as a method, system, or computer program product. Thus, it will be apparent to those skilled in the art that the functional modules/units or controllers and associated method steps set forth in the above embodiments may be implemented in software, hardware, and a combination of software/hardware.
The acts of the methods, procedures, or steps described in accordance with the embodiments of the present invention do not have to be performed in a specific order and still achieve desirable results unless explicitly stated. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
Various embodiments of the invention are described herein, but for brevity, description of each embodiment is not exhaustive and features or parts of the same or similar between each embodiment may be omitted. Herein, "one embodiment," "some embodiments," "example," "specific example," or "some examples" means that it is applicable to at least one embodiment or example, but not all embodiments, according to the present invention. The above terms are not necessarily meant to refer to the same embodiment or example. Those skilled in the art may combine and combine the features of the different embodiments or examples described in this specification and of the different embodiments or examples without contradiction.
The exemplary systems and methods of the present invention have been particularly shown and described with reference to the foregoing embodiments, which are merely examples of the best modes for carrying out the systems and methods. It will be appreciated by those skilled in the art that various changes may be made to the embodiments of the systems and methods described herein in practicing the systems and/or methods without departing from the spirit and scope of the invention as defined in the following claims.
Claims (10)
1. A phase temperature compensation circuit, comprising:
the input end is an input end of the coupler;
the output end is an isolation port of the coupler;
the matching network is connected with the through end and the coupling end of the coupler and is used for expanding the phase compensation range;
and the through end and the coupling end of the coupler are respectively connected with the variable capacitor through the matching network.
2. The phase temperature compensation circuit of claim 1 further comprising a temperature coefficient voltage generation circuit, wherein the temperature coefficient voltage generation circuit generates a temperature coefficient voltage to control the variable capacitance.
3. The phase temperature compensation circuit of claim 1 wherein the coupler comprises a first coupler and a second coupler + a first variable capacitance + a second variable capacitance + a first temperature coefficient of temperature sensing current source + a second temperature coefficient of temperature sensing current source, the channel of the first coupler connected to the first variable capacitance being a first channel, the channel of the second coupler connected to the second variable capacitance being a second channel, the control voltages of the first channel and the second channel being an adjustable temperature coefficient current generated by the first and second temperature sensing current sources multiplied by a resistance.
4. A phase temperature compensation circuit according to claim 3 wherein the temperature difference between the first and second channels is converted to a current difference, the current difference being converted via a resistor to a voltage difference, the voltage difference affecting the capacitance of the first and second variable capacitors, the change in capacitance of the variable capacitors causing a phase difference between the input and output of the quadrature coupler of the first and second channels for phase temperature compensation.
5. A phase temperature compensation circuit according to claim 3 wherein changing the temperature coefficient of the temperature coefficient sensing current source achieves temperature compensation effects of different slopes and different directions.
6. A phase temperature compensation circuit according to claim 3 wherein an inductance is connected in series between the coupler and the variable capacitance.
7. The phase temperature compensation circuit of claim 5 wherein the voltage of the first channel controls the variable capacitance of the first channel, the temperature difference information between the first channel and the second channel is converted into a current difference, the current difference is converted into a voltage difference through a resistor, the voltage difference affects the capacitance of the variable capacitance, the change of the capacitance of the variable capacitance causes the phase difference between the input and output of the quadrature coupler of the first channel and the second channel, the temperature difference of the first channel and the second channel is converted into a capacitance difference of the first channel and the second channel, the load impedance of the first channel and the load impedance of the second channel are affected through an inductor, the input and output phase difference of the quadrature coupler of the first channel and the second channel is changed, and thereby the temperature phase compensation is performed, and the reflection coefficient of the load end of the coupler is the reflection coefficient of the capacitor after the capacitor and the inductor are connected in series.
8. A phase temperature compensation circuit according to claim 3 wherein the phase difference of the first and second channels is calculated by:
where X1 is the load impedance of the first channel, X2 is the load impedance of the second channel, X1 is the pure capacitive load Cvar1, and X3 is the pure capacitive load Cvar2.
9. A phase temperature compensation circuit according to claim 3 wherein the temperature coefficient voltage of said first and second channels is linear with temperature and said variable capacitance is monotonically related to control voltage.
10. A phase temperature compensation device comprising:
the input module is an input end of the coupler;
the output module is an isolated port of the coupler;
the matching network module is connected with the through end and the coupling end of the coupler and is used for expanding the phase compensation range; and the through end and the coupling end of the coupler are respectively connected with the variable capacitor through the matching network.
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Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4638269A (en) * | 1985-05-28 | 1987-01-20 | Westinghouse Electric Corp. | Wide band microwave analog phase shifter |
| JPH0730463A (en) * | 1993-07-08 | 1995-01-31 | Anritsu Corp | Quadrature modulator |
| JPH07254833A (en) * | 1994-03-16 | 1995-10-03 | Nec Corp | Stabilizing circuit for phase of clock signal |
| JPH088980A (en) * | 1994-06-17 | 1996-01-12 | Nec Corp | Discrimination device |
| JPH09284014A (en) * | 1996-04-18 | 1997-10-31 | Nec Eng Ltd | Phase characteristic stabilizing circuit |
| JPH10209976A (en) * | 1997-01-21 | 1998-08-07 | Mitsubishi Electric Corp | Optical receiver |
| US5990761A (en) * | 1998-03-19 | 1999-11-23 | Lucent Technologies Inc. | Phase shifter circuit with high linearity |
| JP2003264403A (en) * | 2002-03-11 | 2003-09-19 | Mitsubishi Electric Corp | Micro wave phase shifter |
| JP2005333375A (en) * | 2004-05-19 | 2005-12-02 | Mitsubishi Electric Corp | Microwave phase shifter and wireless machine using it |
| JP2006261843A (en) * | 2005-03-15 | 2006-09-28 | Nec Corp | Variable phase shifter |
| US20070085161A1 (en) * | 2005-10-17 | 2007-04-19 | Bickham Richard S | Integrated semiconductor temperature detection apparatus and method |
| JP2013183351A (en) * | 2012-03-02 | 2013-09-12 | Murata Mfg Co Ltd | Directional coupler |
| JP2016127452A (en) * | 2015-01-05 | 2016-07-11 | 三菱電機特機システム株式会社 | Phase conversion apparatus |
| CN210839500U (en) * | 2019-12-29 | 2020-06-23 | 南京米乐为微电子科技有限公司 | Ultra-wideband adjustable phase-shifting unit loaded with sector line reflection load |
| CN112151923A (en) * | 2019-06-26 | 2020-12-29 | 北京超材信息科技有限公司 | Mixed type liquid crystal phase shifter based on directional coupler |
| CN214380821U (en) * | 2021-03-16 | 2021-10-08 | 成都泰格微波技术股份有限公司 | Phase shift circuit for Ka-band radio frequency chip |
| CN114866071A (en) * | 2022-04-06 | 2022-08-05 | 重庆幂天通讯设备制造有限责任公司 | Phase shifter with ultrahigh phase-shifting resolution ratio of W-band |
-
2023
- 2023-05-05 CN CN202310491564.9A patent/CN116232308A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4638269A (en) * | 1985-05-28 | 1987-01-20 | Westinghouse Electric Corp. | Wide band microwave analog phase shifter |
| JPH0730463A (en) * | 1993-07-08 | 1995-01-31 | Anritsu Corp | Quadrature modulator |
| JPH07254833A (en) * | 1994-03-16 | 1995-10-03 | Nec Corp | Stabilizing circuit for phase of clock signal |
| JPH088980A (en) * | 1994-06-17 | 1996-01-12 | Nec Corp | Discrimination device |
| JPH09284014A (en) * | 1996-04-18 | 1997-10-31 | Nec Eng Ltd | Phase characteristic stabilizing circuit |
| JPH10209976A (en) * | 1997-01-21 | 1998-08-07 | Mitsubishi Electric Corp | Optical receiver |
| US5990761A (en) * | 1998-03-19 | 1999-11-23 | Lucent Technologies Inc. | Phase shifter circuit with high linearity |
| JP2003264403A (en) * | 2002-03-11 | 2003-09-19 | Mitsubishi Electric Corp | Micro wave phase shifter |
| JP2005333375A (en) * | 2004-05-19 | 2005-12-02 | Mitsubishi Electric Corp | Microwave phase shifter and wireless machine using it |
| JP2006261843A (en) * | 2005-03-15 | 2006-09-28 | Nec Corp | Variable phase shifter |
| US20070085161A1 (en) * | 2005-10-17 | 2007-04-19 | Bickham Richard S | Integrated semiconductor temperature detection apparatus and method |
| JP2013183351A (en) * | 2012-03-02 | 2013-09-12 | Murata Mfg Co Ltd | Directional coupler |
| JP2016127452A (en) * | 2015-01-05 | 2016-07-11 | 三菱電機特機システム株式会社 | Phase conversion apparatus |
| CN112151923A (en) * | 2019-06-26 | 2020-12-29 | 北京超材信息科技有限公司 | Mixed type liquid crystal phase shifter based on directional coupler |
| CN210839500U (en) * | 2019-12-29 | 2020-06-23 | 南京米乐为微电子科技有限公司 | Ultra-wideband adjustable phase-shifting unit loaded with sector line reflection load |
| CN214380821U (en) * | 2021-03-16 | 2021-10-08 | 成都泰格微波技术股份有限公司 | Phase shift circuit for Ka-band radio frequency chip |
| CN114866071A (en) * | 2022-04-06 | 2022-08-05 | 重庆幂天通讯设备制造有限责任公司 | Phase shifter with ultrahigh phase-shifting resolution ratio of W-band |
Non-Patent Citations (1)
| Title |
|---|
| 田孝华，刘小虎，胡亚维作: "电子系统设计与工程应用", 西安电子科学技术大学出版社 * |
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