WO2016105060A1 - 단일 입력 다중 출력 구조를 갖는 증폭 장치 - Google Patents
단일 입력 다중 출력 구조를 갖는 증폭 장치 Download PDFInfo
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- WO2016105060A1 WO2016105060A1 PCT/KR2015/014051 KR2015014051W WO2016105060A1 WO 2016105060 A1 WO2016105060 A1 WO 2016105060A1 KR 2015014051 W KR2015014051 W KR 2015014051W WO 2016105060 A1 WO2016105060 A1 WO 2016105060A1
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- 230000003321 amplification Effects 0.000 title claims abstract description 24
- 238000003199 nucleic acid amplification method Methods 0.000 title claims abstract description 24
- 238000000926 separation method Methods 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 230000002238 attenuated effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 2
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
- H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on predistortion circuits
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/111—Indexing scheme relating to amplifiers the amplifier being a dual or triple band amplifier, e.g. 900 and 1800 MHz, e.g. switched or not switched, simultaneously or not
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/171—A filter circuit coupled to the output of an amplifier
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/411—Indexing scheme relating to amplifiers the output amplifying stage of an amplifier comprising two power stages
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/429—Two or more amplifiers or one amplifier with filters for different frequency bands are coupled in parallel at the input or output
Definitions
- the technical idea of the present invention relates to an amplifying apparatus. More specifically, the technical idea of the present invention relates to an amplifier having a single input multiple output structure.
- a distributed antenna system (or wireless repeater) is to cover a shadow area where base station signals are difficult to reach.
- a distributed antenna system may be installed in an area where a radio wave is not received or in a radio wave reception area such as an inside of a building, a basement of a building, a subway, a tunnel, or an apartment complex in a residential area, and amplifies an RF signal received from a base station and transmits it to a terminal This expands the coverage of the base station.
- a high power amplifier should be provided for each band, which increases the size and price of equipment constituting the distributed antenna system.
- the bands supported by the distributed antenna system are composed of various bands of 1 GHz or less as well as 1 GHz or more, an amplifier having various gains is required, which is required for integrated design, management, and operation of multiple bands in a distributed antenna system. Raise a constraint.
- Amplification device is to reduce the manufacturing cost and size of the equipment, and to more efficiently manage and operate the amplifiers of various gains for the multi-band signal.
- an amplifying apparatus includes: a first amplifier configured to amplify an input multi-band signal to a first level; A separation unit separating the multi band signal amplified to the first level into a first band signal and a second band signal; And a second amplifier configured to amplify the second band signal to a second level.
- the first level may be set according to the output condition of the first band signal
- the second level may be set according to the output condition of the second band signal
- the separation unit may include: a coupler for dividing the multiband signal amplified to the first level into a first multiband split signal and a second multiband split signal; A first filter filtering the first multi-band split signal to output the first band signal; And a second filter configured to filter the second multi-band split signal to output the second band signal.
- the separation unit may include: a power divider for dividing the multi band signal amplified to the first level into a first multi band split signal having a third level and a second multi band split signal having a fourth level; A first filter filtering the first multi-band split signal having the third level and outputting the first band signal; And a second filter configured to output the second band signal by filtering the second multi-band split signal having the fourth level.
- the third level may be set according to an output condition of the first band signal.
- the separator may include a diplexer for separating the multi-band signal amplified to the first level into the first band signal and the second band signal.
- the amplifying apparatus may further include a receiver configured to receive a raw multiband signal and output the multiband signal, wherein the receiver is configured to receive the low multiband signal and to receive the raw multiband signal.
- a first low band signal and a second low band signal may be separated, the first and second low band signals may be attenuated, and the attenuated first and second low band signals may be combined to combine the multiband signal.
- the amplifying apparatus may further include a linearizer for linearizing the second band signal, wherein the second amplifier includes the second band signal linearized by the linearizer. Can be amplified to 2 levels.
- the amplifying apparatus may further include an isolator disposed between the first amplifying unit and the separation unit and blocking an inflow of a signal from the separation unit to the first amplifying unit. have.
- the first band signal may be a signal of a lower frequency region than the second band signal.
- the first level may be lower than the second level.
- an amplifier includes: a first amplifier configured to amplify an input multi-band signal to a first level; A divider for dividing the multiband signal amplified to the first level into a first multiband split signal and a second multiband split signal; And a second amplifier configured to amplify the second multi-band split signal to a second level.
- the first level may be set according to an output condition of a first band signal included in the first multiband split signal
- the second level may be set to the second multiband split signal. It may be set according to the output condition of the second band signal included.
- the splitter may include a coupler that splits the multiband signal amplified to the first level into the first and second multiband split signals.
- the division unit may include the multi-band signal amplified to the first level so that the first multi-band division signal has a third level and the second multi-band division signal has a fourth level. And a power divider for dividing the first and second multi-band split signals.
- the third level may be set according to an output condition of the first band signal included in the first multiband split signal.
- the amplification apparatus can amplify a multi-band signal to meet a required output condition using an amplifier having a relatively small gain compared to a general high gain amplifier, thereby manufacturing equipment. And size can be reduced.
- the amplifying apparatuses may more efficiently manage and operate amplifiers having various gains for a multi-band signal.
- FIG. 1 is a block diagram schematically illustrating some components of an amplifying apparatus according to an embodiment of the inventive concept.
- FIG. 2 is an exemplary view showing in detail an embodiment of the amplifying apparatus shown in FIG. 1.
- FIG. 3 is an exemplary view showing another embodiment of the amplifying apparatus shown in FIG. 1 in detail.
- FIG. 4 is an exemplary diagram showing another embodiment of the amplifying apparatus shown in FIG. 1 in detail.
- FIG. 5 is a block diagram schematically illustrating some components of an amplifying apparatus according to another exemplary embodiment of the inventive concept.
- FIG. 6 is an exemplary view showing in detail an embodiment of the amplifying apparatus shown in FIG. 5.
- FIG. 7 is an exemplary diagram showing another embodiment of the amplifying apparatus shown in FIG. 5 in detail.
- one component when one component is referred to as “connected” or “connected” with another component, the one component may be directly connected or directly connected to the other component, but in particular It is to be understood that, unless there is an opposite substrate, it may be connected or connected via another component in the middle.
- ⁇ unit (unit) means a unit for processing at least one function or operation, which is hardware or software Or a combination of hardware and software.
- the amplifying apparatus 10 shown in FIG. 1 is a device constituting a node of a distributed antenna system (for example, a headend apparatus for amplifying a terminal signal and transmitting it to a base station or a remote apparatus for amplifying and transmitting a base station signal to a terminal). It may be implemented as an amplification device or amplification module built in, but is not limited thereto.
- the amplification apparatus 10 according to the spirit of the present invention may be applied to a device that receives and amplifies a multi-band signal and outputs it to the outside again.
- the amplifier 10 is provided in the apparatus which comprises the node of a distributed antenna system is demonstrated as an example.
- the amplifying apparatus 10 includes a receiver 110, a first amplifier 120, an isolator 130, a separator 140, a linearizer 150, and a second amplifier. 160 may be included.
- the receiver 110 may receive a raw multiband signal.
- the receiver 110 may receive the low multiband signal from a base station, a user terminal, or another device configuring a node of a distributed antenna system.
- the low multi band signal may include two or more low band signals.
- the low multi-band signal includes a first low band signal having a relatively low frequency band and a second low band signal having a relatively high frequency band will be described as an example. The same also applies to FIGS. 2 to 7).
- the receiver 110 may output a multi-band signal by performing predetermined signal processing, for example, attenuation processing, on the low multi-band signal.
- the multi-band signal may include a first band signal obtained by performing predetermined signal processing on the first low band signal and a second band signal obtained by performing predetermined signal processing on the second low band signal. It may include.
- the receiver 110 will be described in more detail with reference to FIG. 2 below.
- the receiver 110 may be omitted, unlike in FIG. 1.
- the low multi-band signal may be directly input to the first amplifier 120 as a multi-band signal. .
- the first amplifier 120 may amplify the multi-band signal output from the receiver 110 to a first level.
- the first amplifier 120 may have a first gain.
- the first gain and the first level may be set according to output conditions of the first band signal, respectively.
- the first gain and the first level may be set in consideration of the power ratio of the power divider 141B (see FIG. 3) together with the output condition of the first band signal.
- the first amplifier 120 may be composed of a transistor having a broadband characteristic, for example, a GaN transistor.
- the isolator 130 may allow transmission of a signal from the first amplifier 120 to the separator 140, and block transmission of a signal from the separator 140 to the first amplifier 120. Accordingly, the noise component may be blocked from being included in the multi-band signal amplified to the first level output by the first amplifier 120.
- the separation unit 140 may separate the multi-band signal amplified to the first level for each band.
- the separation unit 140 may separate and output the multi band signal amplified to the first level into a first band signal amplified to the first level and a second band signal amplified to the first level. have.
- the separated first band signal is output without signal processing such as additional amplification, and the separated second band signal is output after being subjected to predetermined signal processing by the linearizer 150 and the second amplifier 160 as described below. Can be.
- the linearizer 150 may distort and output the separated second band signal in consideration of the nonlinear characteristics of the second amplifier 160. Accordingly, the linearity of the second amplifier 160 to be described later may be improved, and the quality of the output signal may be improved. In some embodiments, the linearization unit 150 may be omitted.
- the second amplifier 160 may amplify the separated second band signal to a second level.
- the second amplifier 160 may have a second gain.
- the second gain and the second level may be set according to an output condition of the second band signal.
- the second gain is further considered in the degree of amplification by the first amplifier 120. Can be set.
- the second gain may be set in consideration of the power ratio of the power divider 141B (see FIG. 3).
- the second amplifier 140 may be configured as an LDMOS transistor corresponding to the separated second band signal.
- the amplifying apparatus 10 amplifies a high frequency band signal requiring high output amplification together with a low frequency band signal to a low output level required for the low frequency band signal and then performs a low frequency band signal. It is further amplified separately to have the high output level required for service.
- the amplifying apparatus 10 can use amplifiers having low gains without using a high gain amplifier having a high cost and a large size for amplifying a band requiring high power, thereby reducing manufacturing costs and reducing volume. Enables reduction and enables efficient design, management and operation of the amplification device 10 through integrated amplification processing for each band.
- FIG. 2 is an exemplary view showing in detail an embodiment of the amplifying apparatus shown in FIG. 1.
- the same reference numerals as in FIG. 1 denote the same components, and thus, the receiver 110 and the separator 140 will be described with reference to FIG. Explain mainly on).
- the receiver 110 in the amplifying apparatus 10A, includes a divider 2W and 111, first and second receiver filters 112 and 114, attenuators 113 and 115, and a combiner. (2W, 116).
- the divider 112 may receive a low multiband signal, and may divide the low multiband signal into first and second low multiband split signals.
- the first receiver filter 112 may filter the first low multi-band split signal to output a first low band signal, and the attenuator 113 may output the first low band output from the first receiver filter 112.
- the signal can be attenuated and output.
- the second receiver filter 114 may filter the second low multi-band split signal to output a second low band signal, and the attenuator 115 may output the filtered second output from the second receiver filter 114.
- the low band signal can be attenuated and output.
- the combiner 116 may combine the attenuated first low band signal and the second low band signal to generate a multi band signal, and output the generated multi band signal to the first amplifier 120.
- the receiver 110 removes and adjusts noise from a low multi-band signal received from a base station, a user terminal, and the like, the signal to noise ratio (SNR) of the final output signals may be improved.
- SNR signal to noise ratio
- the separation unit 140A of the amplifying apparatus 10A may include a coupler 141A, a first filter 143A, and a second filter 145A.
- the coupler 141A may divide the multiband signal amplified to the first level into a first multiband split signal and a second multiband split signal.
- the first filter 143A may filter the first multi-band split signal to output a first band signal.
- the first filter 143A may be configured as, for example, a low pass filter or a band pass filter.
- the second filter 145A may filter the second multi-band split signal to output a second band signal.
- the second filter 145A may include, for example, a high pass filter or a band pass filter.
- the first and second filters 143A and 145A may be omitted. This will be described in more detail with reference to FIG. 6 below.
- FIG. 3 is an exemplary view showing another embodiment of the amplifying apparatus shown in FIG. 1 in detail.
- the same reference numerals as in FIGS. 1 and 2 represent the same configuration, the same reference numerals will be described with reference to FIGS. 1 and 2. do.
- the separating unit 140B of the amplifying apparatus 10B may include a power divider 141B, a first filter 143B, and a second filter 145B.
- the power divider 141B may divide the multiband signal amplified to the first level into a first multiband split signal having a third level and a second multiband split signal having a fourth level according to a predetermined power ratio. .
- the first filter 143B may filter the first multi-band split signal and output a first band signal.
- the first filter 143B may be configured as, for example, a low pass filter or a band pass filter.
- the second filter 145B may filter the second multi-band split signal to output a second band signal.
- the second filter 145B may be configured as, for example, a high pass filter or a band pass filter.
- the power divider 141B divides a multiband signal into the first multiband split signal and the second multiband split signal according to a predetermined power ratio.
- the power gain of the power divider 241 is further considered in addition to the output condition of the first band signal and the output condition of the second band signal respectively corresponding to the first gain of the 120 and the second gain of the second amplifier 160. Should be set.
- the first gain of the first amplifier 120 corresponds to the output condition of the first band signal as in the amplifier 10A of FIG. 2 in consideration of the predetermined power ratio of the power divider 141B. It can be set to have a larger value than the value when amplifying a multi-band signal directly to the level. Accordingly, in the amplifier 10B shown in FIG. 3, the first level of the multi-band signal amplified by the first amplifier 120 to the first gain does not correspond to the output condition of the first band signal.
- the third level of one multi-band split signal may correspond to an output condition of the first band signal.
- the second gain of the second amplifier 160 is at a level corresponding to the output condition of the second band signal as in the amplifier 10A of FIG. 2 in consideration of the predetermined power ratio of the power divider 141B.
- the second band signal may be set to have a larger value than that of the case of directly amplifying the second band signal.
- the first and second filters 143B and 145B of the amplifier 10B may be omitted similarly to the first and second filters 143A and 145A of the amplifier 10A. This will be described in more detail with reference to FIG. 7 below.
- FIG. 4 is an exemplary diagram showing another embodiment of the amplifying apparatus shown in FIG. 1 in detail.
- the same reference numerals as in FIGS. 1 to 3 represent the same configuration, the same reference numerals will be described with reference to FIGS. 1 to 3, but redundant descriptions will be omitted and the focus will be on the separating unit 140C. do.
- the separating unit 140C may be configured as a diplexer.
- the diplexer separates a signal into two band signals by using a low pass filter and a high pass filter. Accordingly, the diplexer uses the first filter 143A shown in FIGS. 2 and 3. , 143B) and the multi-band signal amplified to the first level without the second filters 145A and 145B may be separated into a first band signal and a second band signal and output.
- FIG. 5 is a block diagram schematically illustrating some components of an amplifying apparatus according to another exemplary embodiment of the inventive concept.
- the amplifying apparatus 20 illustrated in FIG. 5 may be implemented as an amplifying apparatus or an amplifying module embedded in a device constituting a node of a distributed antenna system similar to the amplifying apparatus 10 illustrated in FIG. 1, but is not limited thereto. It doesn't work.
- FIG. 5 since reference numerals corresponding to reference numerals in FIG. 1 represent the same or similar configurations, the description will be made with reference to FIG. 1, but the overlapping description will be omitted and the division unit 240, which is a difference, will be described. Explain.
- the amplifier 20 may include a divider 240 in place of the separator 140 of the amplifier 10.
- the divider 240 may split the multi-band signal amplified to the first level by the first amplifier 220 into a plurality of divided signals.
- the divider 240 may split the multiband signal including the first and second band signals into first and second multiband split signals including the first and second band signals, respectively. Can be.
- the division unit 240 may transmit the first and second multi-band split signals to different paths, and the first multi-band split signal is output without signal processing such as additional amplification.
- the band split signal may be output after a predetermined signal is processed by the linearizer 250 and the second amplifier 260.
- the divider 240 divides the input multi-band signal into signals including all bands included in the multi-band signal without separating the input multi-band signal for each band, unlike the separation unit 140 shown in FIG. 1.
- FIG. 6 is an exemplary view showing in detail an embodiment of the amplification device shown in FIG. 5
- FIG. 7 is an exemplary view showing another embodiment of the amplification device shown in FIG. 5 in detail.
- 6 and 7 since the same reference numerals as in FIG. 5 represent the same configuration, the division parts 240A and 240B, which are described with reference to FIG. 5 together, omitting redundant description and showing a more detailed configuration, are illustrated. Explain the center.
- the divider 240A may be configured as a single coupler, and the divider 240A may multiply the multiband signals amplified to the first level. And a first multi-band split signal including a second band signal and a second multi-band split signal.
- the divider 240B may be configured as a single power divider, and the divider 240B may output a multi-band signal amplified to a first level at a predetermined power. According to the ratio, the first multi-band split signal of the third level including the first and second band signals may be divided into the second multi-band split signal of the fourth level.
- the dividing unit of the amplifying apparatuses 20A and 20B may have a configuration in which filters for filtering a predetermined band signal from the multi-band dividing signal are omitted, so that the amplifying apparatuses 20A and 20B may improve the design convenience and The manufacturing cost can be reduced.
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Abstract
Description
Claims (16)
- 입력된 멀티 밴드 신호를 제1 레벨로 증폭하는 제1 증폭부;상기 제1 레벨로 증폭된 멀티 밴드 신호를 제1 밴드 신호와 제2 밴드 신호로 분리하는 분리부; 및상기 제2 밴드 신호를 제2 레벨로 증폭하는 제2 증폭부;를 포함하는 증폭 장치.
- 제1 항에 있어서,상기 제1 레벨은,상기 제1 밴드 신호의 출력 조건에 따라 설정되며,상기 제2 레벨은,상기 제2 밴드 신호의 출력 조건에 따라 설정되는, 증폭 장치.
- 제1 항에 있어서,상기 분리부는,상기 제1 레벨로 증폭된 멀티 밴드 신호를 제1 멀티 밴드 분할 신호와 제 2 멀티 밴드 분할 신호로 분할하는 커플러;상기 제1 멀티 밴드 분할 신호를 필터링하여 상기 제1 밴드 신호를 출력하는 제1 필터; 및상기 제2 멀티 밴드 분할 신호를 필터링하여 상기 제2 밴드 신호를 출력하는 제2 필터;를 포함하는 증폭 장치.
- 제1 항에 있어서,상기 분리부는,상기 제1 레벨로 증폭된 멀티 밴드 신호를 제3 레벨의 제1 멀티 밴드 분할 신호와 제4 레벨의 제2 멀티 밴드 분할 신호로 분할하는 파워 디바이더;상기 제3 레벨의 제1 멀티 밴드 분할 신호를 필터링하여 상기 제1 밴드 신호를 출력하는 제1 필터; 및상기 제4 레벨의 제2 멀티 밴드 분할 신호를 필터링하여 상기 제2 밴드 신호를 출력하는 제2 필터;를 포함하는 증폭 장치.
- 제4 항에 있어서,상기 제3 레벨은,상기 제1 밴드 신호의 출력 조건에 따라 설정되는 증폭 장치.
- 제1 항에 있어서,상기 분리부는,상기 제1 레벨로 증폭된 멀티 밴드 신호를 상기 제1 밴드 신호와 상기 제2 밴드 신호로 분리하는 다이플렉서(diplexer);를 포함하는 증폭 장치.
- 제1 항에 있어서,상기 증폭 장치는,로우(raw) 멀티 밴드 신호를 수신하여 상기 멀티 밴드 신호를 출력하는 수신부;를 더 포함하되,상기 수신부는, 상기 로우 멀티 밴드 신호를 수신하여 제1 로우 밴드 신호와 제2 로우 밴드 신호로 분리하고, 상기 제1 및 제2 로우 밴드 신호를 감쇠시키고, 감쇠된 상기 제1 및 제2 로우 밴드 신호를 결합하여 상기 멀티 밴드 신호를 출력하는, 증폭 장치.
- 제1 항에 있어서,상기 증폭 장치는,상기 제2 밴드 신호를 선형화하는 선형화부;를 더 포함하되,상기 제2 증폭부는,상기 선형화부에 의해 선형화된 상기 제2 밴드 신호를 상기 제2 레벨로 증폭하는, 증폭 장치.
- 제1 항에 있어서,상기 증폭 장치는,상기 제1 증폭부와 상기 분리부 사이에 배치되며, 상기 분리부로부터 상기 제1 증폭부로의 신호 유입을 차단하는 아이솔레이터(isolator);를 더 포함하는 증폭 장치.
- 제1 항에 있어서,상기 제1 밴드 신호는, 상기 제2 밴드 신호보다 저주파 영역의 신호인 증폭 장치.
- 제1 항에 있어서,상기 제1 레벨은, 상기 제2 레벨보다 저 레벨인 증폭 장치.
- 입력된 멀티 밴드 신호를 제1 레벨로 증폭하는 제1 증폭부;상기 제1 레벨로 증폭된 멀티 밴드 신호를 제1 멀티 밴드 분할 신호와 제2 멀티 밴드 분할 신호로 분할하는 분할부; 및상기 제2 멀티 밴드 분할 신호를 제2 레벨로 증폭하는 제2 증폭부;를 포함하는 증폭 장치.
- 제12 항에 있어서,상기 제1 레벨은,상기 제1 멀티 밴드 분할 신호에 포함되는 제1 밴드 신호의 출력 조건에 따라 설정되고,상기 제2 레벨은,상기 제2 멀티 밴드 분할 신호에 포함되는 제2 밴드 신호의 출력 조건에 따라 설정되는, 증폭 장치.
- 제12 항에 있어서,상기 분할부는,상기 제1 레벨로 증폭된 멀티 밴드 신호를 상기 제1 및 제2 멀티 밴드 분할 신호로 분할하는 커플러;를 포함하는 증폭 장치.
- 제12 항에 있어서,상기 분할부는,상기 제1 멀티 밴드 분할 신호가 제3 레벨을 갖고 상기 제2 멀티 밴드 분할 신호가 제4 레벨을 갖도록, 상기 제1 레벨로 증폭된 멀티 밴드 신호를 상기 제1 및 제2 멀티 밴드 분할 신호로 분할하는 파워 디바이더;를 포함하는, 증폭 장치.
- 제15 항에 있어서,상기 제3 레벨은,상기 제1 멀티 밴드 분할 신호에 포함되는 제1 밴드 신호의 출력 조건에 따라 설정되는 증폭 장치.
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US15/538,529 US10333481B2 (en) | 2014-12-22 | 2015-12-21 | Amplification apparatus having single-input multi-output structure |
KR1020167010547A KR101855166B1 (ko) | 2014-12-22 | 2015-12-21 | 단일 입력 다중 출력 구조를 갖는 증폭 장치 |
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US10116264B1 (en) | 2017-05-31 | 2018-10-30 | Corning Optical Communications Wireless Ltd | Calibrating a power amplifier such as in a remote unit in a wireless distribution system (WDS) |
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Also Published As
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US10333481B2 (en) | 2019-06-25 |
KR20160089351A (ko) | 2016-07-27 |
US20170366150A1 (en) | 2017-12-21 |
KR101855166B1 (ko) | 2018-05-09 |
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