CN1703827A - Apparatus, methods and articles of manufacture for multiband signal processing - Google Patents
Apparatus, methods and articles of manufacture for multiband signal processing Download PDFInfo
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- CN1703827A CN1703827A CN 200380101026 CN200380101026A CN1703827A CN 1703827 A CN1703827 A CN 1703827A CN 200380101026 CN200380101026 CN 200380101026 CN 200380101026 A CN200380101026 A CN 200380101026A CN 1703827 A CN1703827 A CN 1703827A
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Abstract
Apparatus, methods and articles of manufacture are shown for modifying electromagnetic waves. Through using various wave characteristics such as amplitude to regulate a current source, a current is output that may be used in any number of ways, such as driving an antenna or other load.
Description
Technical field
Relate generally to Electromagnetic Treatment of the present invention is specifically related to attenuation of Electromagnetic or amplification.
Background technology
Electromagnetic controlled attenuation or amplification have many purposes.For example, can and/or amplify (" modifications ") electromagnetic wave characteristics and come, such as when amplitude, frequency or the phase place of modulated current or radio frequency (RF) ripple finding during with the transmission data by decay along with ripple transmits information.As another example, can and/or amplify electromagnetic wave characteristics and come in a controlled manner along with the ripple delivering power finding during such as voltage in being modulated at circuit or electric current by decay.And, can make up described purposes, such as when coming by the modification power features via ripple transmission information.
Can realize electromagnetic wave characteristic modification by numeral or analogue technique.Also can combined digital and analog attenuation and/or amplification, that is, same ripple can carry out various numerals and/or analog attenuation and/or amplification so that finish desired task in system.
But it can be difficult revising electromagnetic wave characteristics.For example, owing to some reasons, it can be difficult selecting suitable technology or parts to revise wave characteristic.One of those reasons relate to the type of the ripple that will revise.For example, such as the low frequency wave of 60Hz power waves can need with such as the different modification technology of the high frequency waves of 24GHz radar wave.Therefore, general custom is to use the different parts with different qualities for different ripples.For example, has different Power Processing characteristics for 60Hz power waves employed switching semiconductor in computer with the power semiconductor that in the 24GHz radar system, uses.But,, then will be of value to electromagnetic wave and revise the field by the simplified design technology if can use similar or standardized technology and/or parts for polytype ripple.
A kind of trial on recent already used standardized technique and parts is to use wave characteristic to be used as being used to revise the information of ripple.For example, by ripple being converted to polar coordinates with amplitude and phase property, can be so that provide the mode of standardized technique to use and/or handle any or both of described feature for various wave frequencies.But such trial is subject to application difficult.For example, use the trial of a plurality of amplifiers to be subjected to the difficulty that the amplifier combination is followed.On concrete, the parts such as converter or quatrter-wavelength line are used for the output summation of pair amplifier, so that drive load.These parts make amplifier array increase cost and size.
Therefore, if can use wave characteristic, be useful then for the Electromagnetic Treatment field so that decay and/or amplify ripple with effective and efficient manner.
Summary of the invention
Embodiments of the invention comprise device, method and the product that is used to revise electromagnetic manufacturing.Preferred embodiment uses the feature of ripple to revise ripple, and is provided for revising the technology and/or the parts of various ripples.In these embodiments, use two or more independent controllable current sources to produce output wave as the modification of incoming wave.Those current sources are conditioned by the feature of incoming wave.
Description of drawings
Fig. 1 shows a preferred embodiment.
Fig. 2 shows the operation chart of the embodiment of Fig. 1.
Embodiment
The feature that is used for according to ripple that comprises embodiments of the invention decays and/or amplifies device, method and the product of (" modification ") electromagnetic manufacturing.
Fig. 1 shows a preferred embodiment.Incoming wave is provided to digital signal processor 10.Digital signal processor 10 comprises analog to digital converter 11, and it is for example by using rectangular coordinate or I, Q data with the ripple digitlization.The right angle receives described I, Q data then to polar converter 12, and is converted into polar coordinates.Should be noted that in other embodiments, if necessary, then can provide the digitized representations form of ripple to polar converter to the right angle.In those embodiment, can produce described digitized representations form with multiple mode well known in the art any.And, though this embodiment be described to digitized wave and I, Q and number of poles according to being used in combination, it will be apparent to those skilled in the art that other embodiment is not limited thereto and can uses any numeral or analog wave form or its combination.
Return the embodiment of Fig. 1 now, the right angle is to the digitized wave of polar converter 12 output with polar form, and described polar coordinates are taked for example form of R, P (sin) and P (cos).In this example, the amplitude characteristic of R coordinates table oscillography.The phase property of P (sin) and the oscillography of P (cos) coordinates table.Should be noted that " feature " refers to electromagnetic wave characteristics as used herein, such as frequency, voltage, amplitude (comprising range value and envelope), phase place, electric current, waveform or pulse.Other embodiment can optionally obtain one or more wave characteristic from incoming wave.
Turn to Fig. 2 tout court, wherein show schematic diagram according to the ripple of the embodiment conversion of Fig. 1.Incoming wave a is converted into: range value component m, it comprises that incoming wave is at period t
1On the range value feature; Phase component p, it be included in carrier wave on the same period on phase property.Show output wave b after amplification by a preferred embodiment.Should be noted that the described period in this and other embodiment is random.For example, embodiment can use various sample rates to obtain the range value and the phase property of ripple, so that the resolution of maximization ripple, maximum speed of operation etc.These sample rates also can dynamically be determined in various embodiments, so that they change during operation.In described preferred embodiment, the division of incoming wave is by synchronously, so that maximize the precision of output and minimize any distortion.
Return Fig. 1 now, come transmission amplitude and phase property by the path of separating then.The amplitude characteristic of incoming wave via transducer 13 along path a
mBe converted into digit pulse, comprising being quantified as bit B
0To B
N-1Numeric word, have highest significant position (" MSB ") to least significant bit (" LSB ").In different embodiment, numeric word may have different length.Generally, word is long more, and then the precision of the reproduction of incoming wave is big more.Numeric word provides for the control that decays and/or amplify in the mode that further describes below.Certainly, as further described below, in other embodiments, can use the numeric word and the amplitude of other types or the obtaining and/or presentation mode of other wave characteristic that differently constitute.
In the embodiment in figure 1, show seven control assembly line a from the transducer 13s
m1-a
m7.The quantity of these control assembly lines depends on the resolution of word in a preferred embodiment.In this preferred embodiment, word has the resolution of 7 bits.Should be noted that in Fig. 1 and watch described accompanying drawing for convenience, the control assembly line is integrated into single path a
mIn, single path a
mIntroduce control assembly 22a-g.But, in described embodiment, and as further described below, and the control assembly line is not merged, but enters control assembly independently.Phase property is along path a
pPropagate.At this, phase property at first is modulated on the ripple by digital to analog converter 18 and synthesizer 20 (being voltage controlled oscillator in a certain preferred embodiment).Synthesizer 20 provides output wave, and it comprises phase information.This output wave has constant envelope, and promptly it does not have changes in amplitude, but it has the phase property of original incoming wave, and is sent to driver 24, is sent to driver line a then
p1-a
p7.Ripple separated between the driver line is provided to current source 25a-25g then, and will be used for possibility drive current source 25a-25g, and is as further described below.In other embodiments, except phase property, can also use other sources of other wave characteristic.
Should be noted that in the present embodiment, can use transistor to be used as current source 25a-25g.In addition, in other embodiments, can use one or more transistors of suitably cutting apart to be used as current source 25a-25g.Current source 25a-25g must not be configured to such an extent that work as voltage source, and this for example is by making transistor saturated, and transistor will disturb the expectation currents combination in described source.
Path a
m(as mentioned above by control assembly line a
m1-a
m7 form) in control assembly 22a-22g, stop.In described special preferred embodiment, these are switching transistors, and current source preferably, but as further described below, in other embodiments, also can use other sources and other regulation schemes of other wave characteristic.Control assembly 22a-22g passes through from the bits switch of the numeric word of amplitude parts output, and regulated from the numeric word of amplitude parts output, if a bit is " 1 " or " height ", then Dui Ying control assembly is switched on, and electric current flows to suitable current source 25a-g from that control assembly along biasing control line 23a-g.As mentioned above, in different embodiment, the length of numeric word may be different, so the quantity of bit, control assembly, control assembly line, driver line, biasing control line, current source etc. may be different.And, in different embodiment, man-to-man corresponding relation needn't be arranged between digital word resolution, parts, line and current source.
If a control assembly conducting, then therefore current source 25a-g regulates each current source according to those parts from the control assembly received current.In described special preferred embodiment, suitable control assembly provides bias current to current source, and is as further described below, so control assembly can be called as bias control circuit, and a plurality of bias control circuits are called as biasing networks.In certain embodiments, if necessary, can expect to use switching network to distribute one or more bias control circuits statically or dynamically to one or more current sources.
Return the embodiment of Fig. 1 now, each current source is used as possible current source, and can produce electric current, and described electric current is outputed to current source line 26a-g respectively.Therefore each current source can or cannot can maybe cannot produce electric current, because it is adjusted via the suitable digital word value that is used for regulation control part as current source.The startup of any current source and from the electric current of that current source produce depend on be used to regulate suitable control assembly, from the value of the suitable bit of the numeral of amplitude parts.Should be noted that described current source is not one or more amplifiers in a preferred embodiment, but as a plurality of current sources of an amplifier, as said.In fact, in a preferred embodiment, amplify and/or decay can be considered the function of those embodiment, therefore amplifier and/or attenuator can be considered and be used to the electronic unit or the system of amplifying and/or decaying.
The electric current of combination, promptly from any electric current of current source 25a-g output and be current source output.Therefore, described embodiment can be used as attenuator and/or amplifier.Therefore the electric current that does not need other circuit or parts to make up from each current source between current source also provides useful output current.Therefore, can be optionally with output on online 27 and the combination current that is shown as b for example use as amplifier, as attenuator, be used for driving load etc.
In a preferred embodiment, current source changes on electric current output and size.This provides various weightings to the electric current that may be provided by those current sources.For example, in a preferred embodiment, first current source is two times of size of next current source, two times of the size that described next current source is next current source then or the like, and current source to the last.The quantity of current source can be mated with the amount of bits of digital control word, so that control maximum current source by the MSB of amplitude word, the next maximum current source of next bit control of described word etc. are up to the LSB that is sent to minimum current source.Certainly, as mentioned above, other embodiment can have the different mode of bits match to current source, comprise the use switching network.And, in a special preferred embodiment, provide the identical current source and the different in size current sources of identical size.In other embodiment, other wave characteristic can be provided to other current source, and therefore regulates those sources.
Current source 25a-g is one or more HBT transistors in the preferred embodiment of Fig. 1.Also can use other transistor---such as FET etc.---and other current source.Also can arrange other parts---for example variable gain amplifier or attenuator---be reduced to transistor segments, along the drive current of non-linear components of amplitude path etc. etc.
According to the preferred embodiment, best digitlization amplitude characteristic.In one embodiment, peak amplitude is set to equal the full scale (promptly when all bits be set to when high) of digital form.Perhaps, peak amplitude can be set to (promptly greater or lesser) except the full scale of digital form.If peak amplitude is set to less than full scale, then may there be the raising of gain, this is because for the given power level of the carrier signal of phase modulated, mean output power level is enhanced.
The use of preferred embodiment can be provided in the ability of the band amplitude modification in the transmitter that is associated, and this is that this is because lower input capacitance because it makes linear amplification and/or decay on big envelope bandwidth become possibility.Therefore, can in honeycomb and other transmitters, use embodiment, as this further as described in.
Can understand, can use the current source of any suitable type according to expectation in any embodiment of the invention, for example other transistor segments and/or form and other equipment or method.In being manufactured to the preferred embodiment of single integrated circuit, can realize weighting by the segmentation with different semiconductor areas is provided.
In addition, preferred embodiment can comprise the amplifier that is exclusively used in specific incoming wave and output wave, for example embodiment can be used for various RF, microprocessor, microcontroller and/or computer equipment, for example cell phone and other wired and wireless devices, described cell phone such as CDMA, CDMA2000, W-CDMA, GSM, TDMA, described other wired and wireless devices for example bluetooth, 802.11a ,-b ,-g, radar, 1xRTT, transmitting and receiving service, GPRS, computer and compunication device, PDA and other handheld devices etc.
Various embodiment can revise various parameters under the situation that does not break away from the spirit and scope of the present invention.For example, in different embodiment, the length of numeric word can be longer or shorter, and this can provide the ripple of the digital form of more or less precision.As other examples, as mentioned above, can optionally change following whole: the quantity of bit, control assembly, driver line, biasing control line, current source etc.
Can use various types of system configurations to be used to make up embodiments of the invention.Therefore the one of ordinary skilled in the art will understand that it maybe can be the combination of software and hardware that embodiments of the invention or its various parts and/or its feature can be made up of hardware, software fully.Described embodiment or various parts also can be provided on the semiconductor device according to expectation, such as integrated circuit or application-specific integrated circuit (ASIC) assembly; Some examples comprise silicon (Si), SiGe (SiGe) or GaAs (GaAs) substrate.
Though described the present invention by illustrative embodiment, advantage that those skilled in the art can obtain to add and modification.Therefore, the present invention its wider aspect on be not limited to detail shown here and described.Can under the situation that does not break away from the spirit and scope of the present invention, make amendment.So, be intended to the invention is not restricted to specific illustrative embodiment, but in whole spirit and scope of appended claim and their equivalents, explained.
Claims (56)
1. method that is used for Electromagnetic Treatment comprises:
Use at least one wave characteristic to regulate at least two current sources that independence is controlled, wherein, described at least two independent controllable current sources can produce electric current.
2. according to the process of claim 1 wherein, described at least one wave characteristic is an amplitude characteristic.
3. according to the method for claim 1, also comprise:
Produce electric current via the controlled current source of described at least two independences.
4. according to the method for claim 1, also comprise:
Described at least one wave characteristic is provided.
5. according to the method for claim 4, wherein, provide described at least one wave characteristic also to comprise:
Amplitude characteristic is provided.
6. according to the method for claim 4, also comprise:
Provide described at least one wave characteristic via transducer.
7. according to the method for claim 4, also comprise:
Provide described at least one wave characteristic via utmost point transducer.
8. according to the method for claim 4, also comprise:
Provide described at least one wave characteristic via filter.
9. according to the method for claim 4, also comprise:
Provide described at least one wave characteristic via digital to analog converter.
10. according to the process of claim 1 wherein, use at least one wave characteristic to regulate at least two controlled current sources of independence and also comprise:
Provide described at least one wave characteristic to second current source, wherein, described second current source can produce electric current, and when producing electric current, regulates at least one of the controlled current source of described at least two independences.
11. according to the method for claim 10, wherein, described at least one wave characteristic is an amplitude characteristic.
12. according to the process of claim 1 wherein, described at least one wave characteristic comprises first wave characteristic and second wave characteristic, and described method also comprises:
Provide described first wave characteristic and second wave characteristic to the controlled current source of described at least two independences.
13. according to the method for claim 12, wherein said first wave characteristic is an amplitude characteristic.
14. according to the method for claim 12, wherein said second wave characteristic is a phase property.
15. the method according to claim 12 also comprises:
Described first wave characteristic and described second wave characteristic are provided in a synchronous manner.
16. the method according to claim 12 also comprises:
Provide described first wave characteristic and described second wave characteristic via transducer.
17. the method according to claim 12 also comprises:
Provide described first wave characteristic and described second wave characteristic via utmost point transducer.
18. the method according to claim 12 also comprises:
Provide described second wave characteristic via filter.
19. the method according to claim 12 also comprises:
Provide described second wave characteristic via voltage controlled oscillator.
20. the method according to claim 12 also comprises:
Provide described first wave characteristic and described second wave characteristic via digital to analog converter.
21. the method for an Electromagnetic Treatment comprises:
Amplitude characteristic and phase property synchronously are provided;
The transistor that produces electric current at least to using two controlled current sources of independence provides described amplitude characteristic and described phase property.
22. the method according to claim 21 also comprises:
Produce electric current.
23. the method for an Electromagnetic Treatment comprises:
First wave characteristic is provided;
Use described first wave characteristic to regulate first source of wave characteristic;
Second source of wave characteristic is provided;
Use first source of described wave characteristic to regulate second source of described wave characteristic, wherein, second source of described wave characteristic comprises can use two or more independent controlled current sources to produce the transistor of electric current.
24. a device that is used for Electromagnetic Treatment comprises:
Be used to use at least one wave characteristic to regulate the parts of the controlled current source of at least two independence, wherein, the controlled current source of described at least two independences can produce electric current.
25. according to the device of claim 24, wherein, described at least one wave characteristic is an amplitude characteristic.
26. according to the device of claim 24, wherein, the controlled current source of described at least two independences produces electric current.
27. the device according to claim 24 also comprises:
Be used to provide the parts of described at least one wave characteristic.
28., wherein, describedly be used to provide the parts of described at least one wave characteristic also to comprise the parts that are used to provide amplitude characteristic according to the device of claim 27.
29., wherein, describedly be used to provide the parts of described at least one wave characteristic also to comprise transducer according to the device of claim 27.
30., wherein, describedly be used to provide the parts of described at least one wave characteristic also to comprise utmost point transducer according to the device of claim 27.
31., wherein, describedly be used to provide the parts of described at least one wave characteristic also to comprise filter according to the device of claim 27.
32., wherein, describedly be used to provide the parts of described at least one wave characteristic also to comprise digital to analog converter according to the device of claim 27.
33. the device according to claim 24 also comprises:
Be used for providing to second current source parts of described at least one wave characteristic, wherein, described second current source can produce electric current, and when producing electric current, regulates at least one of the controlled current source of described at least two independences.
34. according to the device of claim 33, wherein, described at least one wave characteristic is an amplitude characteristic.
35. according to the device of claim 24, wherein, described at least one wave characteristic comprises first wave characteristic and second wave characteristic, and described device also comprises:
Be used for providing the parts of described second wave characteristic to the controlled current source of described at least two independences.
36. according to the device of claim 35, wherein, described first wave characteristic is an amplitude characteristic.
37. according to the device of claim 35, wherein, described second wave characteristic is a phase property.
38. the device according to claim 35 also comprises:
Be used for providing the parts of described first wave characteristic and described second wave characteristic with the method for synchronization.
39., wherein, describedly be used to provide the parts of described first wave characteristic and described second wave characteristic also to comprise transducer according to the device of claim 35.
40., wherein, describedly be used to provide the parts of described first wave characteristic and described second wave characteristic also to comprise utmost point transducer according to the device of claim 35.
41., wherein, describedly be used to provide the parts of described first wave characteristic and described second wave characteristic also to comprise digital to analog converter according to the device of claim 35.
42., wherein, describedly be used to provide the parts of first wave characteristic also to comprise filter according to the device of claim 35.
43. according to the device of claim 35, wherein, the described parts of second wave characteristic that provide also comprise voltage controlled oscillator.
44. a device that is used for Electromagnetic Treatment comprises:
Digital to analog converter and utmost point transducer are used for synchronously providing amplitude characteristic and phase property;
Transistor can use at least two controlled current sources of independence and produces electric current, is used to receive described amplitude characteristic and described phase property.
45. according to the device of claim 44, wherein, described transistor produces electric current.
46. a device that is used for Electromagnetic Treatment comprises:
Be used to provide the parts of first wave characteristic;
Be used to use described first wave characteristic to regulate the parts in first source of wave characteristic;
Be used to provide the parts in second source of wave characteristic; And
Be used to use first source of described wave characteristic to regulate the parts in second source of described wave characteristic, wherein, second source of described wave characteristic comprises transistor, and it can use the controlled current source of two or more independences to generate electromagnetic waves.
47. an integrated circuit that is used for Electromagnetic Treatment comprises:
Transducer is used for synchronously providing amplitude characteristic and phase property;
Transistor can use at least two controlled current sources of independence to produce electric current, is used to receive described amplitude characteristic and described phase property.
48. a method that is used for Electromagnetic Treatment comprises:
Amplitude characteristic according to ripple comes regulation control part; And
Regulate the controlled transistor segments of two or more independences according to described control assembly, wherein, the controlled transistor segments of described independence can produce electric current.
49., also comprise the generation electric current according to the method for claim 48.
50. a method that is used for Electromagnetic Treatment comprises:
Regulate a plurality of control assemblies according to the amplitude characteristic of ripple;
Regulate the controlled transistor segments of a plurality of independences according to described a plurality of control assemblies, the controlled transistor segments of wherein said a plurality of independences can produce electric current.
51., also comprise the generation electric current according to the method for claim 50.
52. a device that is used for Electromagnetic Treatment comprises:
Be used for regulating according to the amplitude characteristic of ripple the parts of the controlled transistor segments of a plurality of independences, wherein, described transistor segments can produce scheduled current.
53. according to the device of claim 52, wherein, the described parts that are used for regulating according to the amplitude characteristic of ripple transistor segments comprise control assembly, it is conditioned according to the amplitude characteristic of described ripple.
54. according to the device of claim 53, wherein, described control assembly also comprises transistor.
55. an integrated circuit that is used for Electromagnetic Treatment comprises:
Be used for regulating according to the amplitude characteristic of ripple the parts of the controlled transistor segments of a plurality of independences, wherein, the controlled transistor segments of described a plurality of independences can produce scheduled current.
56. according to the integrated circuit of claim 55, wherein, the described parts that are used for regulating according to the amplitude characteristic of ripple transistor segments comprise control assembly, it is conditioned according to the amplitude characteristic of described ripple.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US41731302P | 2002-10-08 | 2002-10-08 | |
| US60/417,313 | 2002-10-08 | ||
| US10/294,430 | 2002-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1703827A true CN1703827A (en) | 2005-11-30 |
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ID=35632720
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200380105376 Pending CN1723611A (en) | 2002-10-08 | 2003-10-08 | Apparatus, methods and articles of manufacture for multiband signal processing |
| CN 200380101026 Pending CN1703827A (en) | 2002-10-08 | 2003-10-08 | Apparatus, methods and articles of manufacture for multiband signal processing |
| CNB2003801029632A Expired - Fee Related CN100477496C (en) | 2002-10-08 | 2003-10-08 | Apparatus and methods for electromagnetic processing of input signal |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200380105376 Pending CN1723611A (en) | 2002-10-08 | 2003-10-08 | Apparatus, methods and articles of manufacture for multiband signal processing |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003801029632A Expired - Fee Related CN100477496C (en) | 2002-10-08 | 2003-10-08 | Apparatus and methods for electromagnetic processing of input signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN1723611A (en) |
-
2003
- 2003-10-08 CN CN 200380105376 patent/CN1723611A/en active Pending
- 2003-10-08 CN CN 200380101026 patent/CN1703827A/en active Pending
- 2003-10-08 CN CNB2003801029632A patent/CN100477496C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1723611A (en) | 2006-01-18 |
| CN1711677A (en) | 2005-12-21 |
| CN100477496C (en) | 2009-04-08 |
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