CN100401579C - Microwave power splitter based on left-right-hand composite transmission line - Google Patents
Microwave power splitter based on left-right-hand composite transmission line Download PDFInfo
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- CN100401579C CN100401579C CNB200510050537XA CN200510050537A CN100401579C CN 100401579 C CN100401579 C CN 100401579C CN B200510050537X A CNB200510050537X A CN B200510050537XA CN 200510050537 A CN200510050537 A CN 200510050537A CN 100401579 C CN100401579 C CN 100401579C
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- hand
- transmission line
- composite transmission
- microwave power
- hand composite
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Abstract
The present invention discloses a microwave power splitter based on a left-hand and right-hand composite transmission line. The microwave power splitter is provided with a plurality of left-hand and right-hand composite transmission line units connected in parallel, and every left-right-hand composite transmission line unit is formed by the way that a right hand material electrical inductance L[R] and a left hand material capacitor C[L]are connected in series, then are connected in parallel with the left hand material electrical inductance L[L] and the right hand material capacitor C[R] and are connected in series with a resistor R again. The microwave power splitter based on a left-hand and right-hand composite transmission line has the following advantages that large and narrow working frequency band can be obtained, insertion loss is low, and power is equalized; simultaneously because the capacitor, the electrical inductance and a resistor element are used, the microwave power splitter based on a left-hand and right-hand composite transmission line has the advantages of simple structure, low cost, very small size and convenient make and integration. The practical design is carried out for the power splitter of a left-hand and right-hand composite transmission line for equalizing power, the result is displayed within the range of a wide frequency band, and performance is good.
Description
Technical field
The present invention relates to a kind of microwave power distributor based on left-right-hand composite transmission line.
Background technology
Microwave power distributor is that input signal power is divided into a kind of multiport microwave network equal or output of unequal several roads power, is widely used in radio frequency or microwave communication, satellite communication, radio communication, cable TV, the microwave phase array antenna.
At present, it is people's such as Wilkinson structure, T type structure, Gupta disc or fan-shaped, wedge structure or the power splitter that utilizes the directional couple microstrip line to constitute that known practical microwave power distributor is divided into usually, but existing these several microwave power distributors exist that working band is narrow, frequency is low, complex structure, big, the demanding shortcoming of manufacture craft of size.
Working band, size, quality size, structural complexity, low insertion loss, power five equilibrium are the essential factors of considering of good microwave power distributor of design.For working band, minification, the simplification manufacture craft that enlarges power splitter, many scholars have proposed certain methods, as: adopt the Wilkinson structure power divider structure of miniaturization, but whole power splitter manufacture difficulty does not improve still.
Summary of the invention
The objective of the invention is for more compact and integrated micro, millimetre-wave circuit efficiently, overcome that existing microwave power distributor exists that working band is narrow, frequency is low, complex structure, big, the demanding deficiency of manufacture craft of size, provide that a kind of to have a big working band narrow, low insertion loss, power five equilibrium, cost is low simultaneously, small-sized, be convenient to make and integrated microwave power distributor based on left-right-hand composite transmission line.
By the unit parallel connection of a plurality of left-right-hand composite transmission lines, the left-right-hand composite transmission line unit is: behind right-handed material inductance, the left-handed materials capacitance series, with mutual left-handed materials inductance that is connected in series and right-handed material electric capacity and connect; An end of resistance is connected in the middle of left-handed materials inductance and the right-handed material electric capacity simultaneously, and other end ground connection.
It is narrow that the present invention can obtain big working band, low insertion loss, power five equilibrium, and because of adopting electric capacity, inductance, resistive element, the microwave power distributor of this left-right-hand composite transmission line is simple in structure simultaneously, and cost is low, and is small-sized, is convenient to making and integrated.Left-right-hand composite transmission line power splitter to the power five equilibrium has carried out actual design, and the result is presented in the broad frequency range functional.
Description of drawings
Fig. 1 is a left-right-hand composite transmission line power divider structure schematic diagram;
Fig. 2 is a left-right-hand composite transmission line cellular construction schematic diagram of the present invention;
Fig. 3 is the power splitter performance (S that 2 left-right-hand composite transmission line unit are formed
21: S
31=1: 1) schematic diagram;
Fig. 4 is the power splitter performance (S that 3 left-right-hand composite transmission line unit are formed
21: S
31=1: 1) schematic diagram;
Fig. 5 is the power splitter performance (S that 2 left-right-hand composite transmission line unit are formed
21: S
31=1.2: 1) schematic diagram.
Embodiment
By the unit parallel connection of a plurality of left-right-hand composite transmission lines, the left-right-hand composite transmission line unit is: the right-handed material inductance L
R, left-handed materials electric capacity G
LAfter the serial connection, with the mutual left-handed materials inductance L that is connected in series
LWith the right-handed material capacitor C
RAnd connect; An end of resistance R is connected the left-handed materials inductance L simultaneously
LWith the right-handed material capacitor C
RCentre, and other end ground connection.Signal is imported by port one, by port 2 and port 3 outputs.By selecting the parallel connection of increase and decrease (2～3) left-right-hand composite transmission line number of unit to obtain required microwave power distributor performance index.
Microwave power distributor example based on left-right-hand composite transmission line: according to required merit proportion by subtraction S
21: S
31=1: 1, thus the pairing capacitor C in left-right-hand composite transmission line unit obtained
R, C
L, inductance L
R, L
L, resistance R numerical value, i.e. left-handed materials capacitor C '
L=C
L=1pF, the right-handed material inductance L '
R=L
R=0.25nH, the left-handed materials inductance L '
L=L
L=0.5nH, the right-handed material capacitor C '
R=C
R=0.5pF, resistance R '=R=200 Ω.Carry out the microwave power distributor of 2,3 left-right-hand composite transmission line unit design in parallel at last respectively, obtain as shown in Figure 3 and Figure 4 microwave power distributor performance based on left-right-hand composite transmission line.
According to required merit proportion by subtraction S
21: S
31=1.2: 1, obtaining is the left-handed materials capacitor C '
L=2pF, C
L=1pF, the right-handed material inductance L '
R=1nH, L
R=0.25nH; Left-handed materials inductance L '
L=0.5nH, L
L=0.5nH; Right-handed material capacitor C '
R=1pF, C
R=0.5pF; Resistance R '=25 Ω, R=200 Ω.Carry out the microwave power distributor of 2 left-right-hand composite transmission line unit design in parallel, obtain as shown in Figure 5 microwave power distributor performance based on left-right-hand composite transmission line.
Claims (7)
1. the microwave power distributor based on left-right-hand composite transmission line is characterized in that it being that the left-right-hand composite transmission line unit is by the unit parallel connection of a plurality of left-right-hand composite transmission lines: right-handed material inductance (L
R), left-handed materials electric capacity (C
L) after the serial connection, with the mutual left-handed materials inductance (L that is connected in series
L) and right-handed material electric capacity (C
R) and connect; An end of resistance (R) is connected left-handed materials inductance (L simultaneously
L) and right-handed material electric capacity (C
R) in the middle of, and other end ground connection.
2. a kind of microwave power distributor based on left-right-hand composite transmission line according to claim 1 is characterized in that, described a plurality of left-right-hand composite transmission lines unit is 2～3.
3. a kind of microwave power distributor based on left-right-hand composite transmission line according to claim 1 is characterized in that, described left-handed materials electric capacity (C
L) electric capacity be 1pF～2pF.
4. a kind of microwave power distributor based on left-right-hand composite transmission line according to claim 1 is characterized in that, described right-handed material inductance (l
R) inductance be 0.25nH～1nH.
5. a kind of microwave power distributor based on left-right-hand composite transmission line according to claim 1 is characterized in that, described left-handed materials inductance (L
L) inductance be 0.5nH.
6. a kind of microwave power distributor based on left-right-hand composite transmission line according to claim 1 is characterized in that, described right-handed material electric capacity (C
R) electric capacity be 0.5pF～1pF.
7. a kind of microwave power distributor based on left-right-hand composite transmission line according to claim 1 is characterized in that the resistance of described resistance (R) is 25～200 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510050537XA CN100401579C (en) | 2005-07-01 | 2005-07-01 | Microwave power splitter based on left-right-hand composite transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510050537XA CN100401579C (en) | 2005-07-01 | 2005-07-01 | Microwave power splitter based on left-right-hand composite transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1731623A CN1731623A (en) | 2006-02-08 |
| CN100401579C true CN100401579C (en) | 2008-07-09 |
Family
ID=35963941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510050537XA Expired - Fee Related CN100401579C (en) | 2005-07-01 | 2005-07-01 | Microwave power splitter based on left-right-hand composite transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100401579C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11043931B2 (en) | 2019-11-04 | 2021-06-22 | Analog Devices International Unlimited Company | Power combiner/divider |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100546097C (en) * | 2006-05-31 | 2009-09-30 | 中国科学院电子学研究所 | Based on arbitrary dual-frequency power divider of composite right/left-handed transmission line and preparation method thereof |
| CN101022182B (en) * | 2007-03-20 | 2010-04-07 | 浙江大学 | Wide band balun based on left-right-hand composite transmitting line |
| CN111512560B (en) * | 2018-01-17 | 2022-02-11 | Ppc宽带股份有限公司 | Household network splitter with reduced isolation |
| CN110649375B (en) | 2018-06-26 | 2021-01-01 | 中兴通讯股份有限公司 | Mobile terminal antenna and mobile terminal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5453863A (en) * | 1991-05-02 | 1995-09-26 | Kent State University | Multistable chiral nematic displays |
| JPH10341215A (en) * | 1997-06-09 | 1998-12-22 | Semiconductor Res Found | Distributer for multiplex signal |
| US20050008308A1 (en) * | 2003-06-24 | 2005-01-13 | Ion Bita | Structurally chiral materials exhibiting magneto-gyrotropy |
| CN2809910Y (en) * | 2005-07-01 | 2006-08-23 | 浙江大学 | Microwave power divider based on composite right/left-handed transmission line |
-
2005
- 2005-07-01 CN CNB200510050537XA patent/CN100401579C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5453863A (en) * | 1991-05-02 | 1995-09-26 | Kent State University | Multistable chiral nematic displays |
| JPH10341215A (en) * | 1997-06-09 | 1998-12-22 | Semiconductor Res Found | Distributer for multiplex signal |
| US20050008308A1 (en) * | 2003-06-24 | 2005-01-13 | Ion Bita | Structurally chiral materials exhibiting magneto-gyrotropy |
| CN2809910Y (en) * | 2005-07-01 | 2006-08-23 | 浙江大学 | Microwave power divider based on composite right/left-handed transmission line |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11043931B2 (en) | 2019-11-04 | 2021-06-22 | Analog Devices International Unlimited Company | Power combiner/divider |
| US11843360B2 (en) | 2019-11-04 | 2023-12-12 | Analog Devices International Unlimited Company | Power combiner/divider |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1731623A (en) | 2006-02-08 |
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Granted publication date: 20080709 Termination date: 20110701 |