Backward-wave phenomena in helix traveling-wave tube amplifiers:
Saved in:
| Main Author: | |
|---|---|
| Format: | Thesis Book |
| Language: | English |
| Published: |
Hamburg
2022
|
| Subjects: | |
| Online Access: | Inhaltsverzeichnis Inhaltsverzeichnis |
| Physical Description: | vi, 117 Seiten Illustrationen, Diagramme 21 cm |
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MARC
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| 245 | 1 | 0 | |a Backward-wave phenomena in helix traveling-wave tube amplifiers |c von Moritz Hägermann |
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Record in the Search Index
| _version_ | 1804184667164770304 |
|---|---|
| adam_text | CONTENTS
1
INTRODUCTION
1
2
PRINCIPLES
OF
TRAVELING-WAVE
TUBES
3
2.1
COMPONENTS
OF
TRAVELING-WAVE
TUBES
.....................................................
3
2.1.1
ELECTRON
GUN
................................................................................
4
2.1.2
MAGNETIC
BEAM-FOCUSING
..............................................................
5
2.1.3
SLOW-WAVE
STRUCTURES
.................................................................
8
2.1.4
COLLECTOR
.............................................................................................
13
2.2
SPACE-CHARGE
WAVES
ON
ELECTRON
BEAMS
...................................................
15
2.3
BASIC
OPERATING
PRINCIPLE
..........................................................................
17
2.4
OSCILLATION
TYPES
AND
NARROWBAND
PHENOMENA
.......................................
20
3
BEAM-WAVE
INTERACTION
SIMULATION
23
3.1
SIMULATION
APPROACHES
................................................................................
23
3.2
SOFTWARE
TOOL
MVTRAD3-D
....................................................................
25
3.2.1
BEAM
MODELING
AND
DYNAMICS
.........................................................
25
3.2.2
FIELD
MODELING
.................................................................................
27
3.2.3
SOLVER
ALGORITHM
..............................................................................
29
4
BACKWARD-WAVE
OSCILLATIONS
31
4.1
FUNDAMENTALS
OF
BACKWARD-WAVE
INTERACTION
............................................
31
4.2
SIMULATION
APPROACH
AND
CONDITION
FOR
OSCILLATIONS
.................................
37
4.3
OSCILLATION
STARTUP
ANALYSIS
.......................................................................
38
4.4
LARGE-SIGNAL
ANALYSIS
...................................................................................
41
4.5
OSCILLATION
SUPPRESSION
BY
MAGNETIC-FIELD
TAPERING
.................................
42
5
PI-MODE
OSCILLATIONS
51
5.1
ASYMMETRY-INDUCED
COUPLING
MECHANISMS
...............................................
52
5.1.1
DELAY-LINE
ASYMMETRIES
..................................................................
53
5.1.2
BEAM
ASYMMETRIES
...........................................................................
57
5.2
SIMULATION
APPROACH
...................................................................................
59
5.3
ZERO-DRIVE
OSCILLATION
ANALYSIS
...................................................................
60
5.4
A
1-D
SMALL-SIGNAL
SIMULATION
APPROACH
....................................................
62
6
DRIVE-INDUCED
OSCILLATIONS
67
6.1
ELECTRON
BEAMS
IN
LARGE-SIGNAL
AMPLIFIER
OPERATION
...............................
68
6.2
SIMULATION
APPROACH
.....................................................................................
69
6.3
DRIVE-INDUCED
PI-MODE
OSCILLATIONS
.............................................................
71
6.4
DRIVE-INDUCED
BACKWARD-WAVE
OSCILLATIONS
.................................................
73
6.4.1
EXCITATION
OF
BACKWARD-WAVE
OSCILLATIONS
IN
LARGE-SIGNAL
DRIVE
74
6.4.2
SIMULATION
RESULTS
...........................................................................
76
6.4.3
A
CRITERION
FOR
DIBWO
PREDICTION
................................................
79
6.5
OSCILLATION
SUPPRESSION
..................................................................................
82
7
POWER
HOLES
85
7.1
REFLECTIONS
......................................................................................................
87
7.2
SIMULATION
APPROACH
.....................................................................................
88
7.3
ANALYSIS
OF
POWER
HOLES
...............................................................................
89
7.3.1
HOMOGENEOUS
DELAY-LINES
...............................................................
90
7.3.2
NON-HOMOGENEOUS
DELAY-LINES
......................................................
91
7.4
SUPPRESSION
OF
POWER
HOLES
.........................................................................
93
8
CONCLUSION
97
LIST
OF
ACRONYMS
101
LIST
OF
IMPORTANT
SYMBOLS
103
LIST
OF
FIGURES
105
BIBLIOGRAPHY
111
|
| adam_txt |
CONTENTS
1
INTRODUCTION
1
2
PRINCIPLES
OF
TRAVELING-WAVE
TUBES
3
2.1
COMPONENTS
OF
TRAVELING-WAVE
TUBES
.
3
2.1.1
ELECTRON
GUN
.
4
2.1.2
MAGNETIC
BEAM-FOCUSING
.
5
2.1.3
SLOW-WAVE
STRUCTURES
.
8
2.1.4
COLLECTOR
.
13
2.2
SPACE-CHARGE
WAVES
ON
ELECTRON
BEAMS
.
15
2.3
BASIC
OPERATING
PRINCIPLE
.
17
2.4
OSCILLATION
TYPES
AND
NARROWBAND
PHENOMENA
.
20
3
BEAM-WAVE
INTERACTION
SIMULATION
23
3.1
SIMULATION
APPROACHES
.
23
3.2
SOFTWARE
TOOL
MVTRAD3-D
.
25
3.2.1
BEAM
MODELING
AND
DYNAMICS
.
25
3.2.2
FIELD
MODELING
.
27
3.2.3
SOLVER
ALGORITHM
.
29
4
BACKWARD-WAVE
OSCILLATIONS
31
4.1
FUNDAMENTALS
OF
BACKWARD-WAVE
INTERACTION
.
31
4.2
SIMULATION
APPROACH
AND
CONDITION
FOR
OSCILLATIONS
.
37
4.3
OSCILLATION
STARTUP
ANALYSIS
.
38
4.4
LARGE-SIGNAL
ANALYSIS
.
41
4.5
OSCILLATION
SUPPRESSION
BY
MAGNETIC-FIELD
TAPERING
.
42
5
PI-MODE
OSCILLATIONS
51
5.1
ASYMMETRY-INDUCED
COUPLING
MECHANISMS
.
52
5.1.1
DELAY-LINE
ASYMMETRIES
.
53
5.1.2
BEAM
ASYMMETRIES
.
57
5.2
SIMULATION
APPROACH
.
59
5.3
ZERO-DRIVE
OSCILLATION
ANALYSIS
.
60
5.4
A
1-D
SMALL-SIGNAL
SIMULATION
APPROACH
.
62
6
DRIVE-INDUCED
OSCILLATIONS
67
6.1
ELECTRON
BEAMS
IN
LARGE-SIGNAL
AMPLIFIER
OPERATION
.
68
6.2
SIMULATION
APPROACH
.
69
6.3
DRIVE-INDUCED
PI-MODE
OSCILLATIONS
.
71
6.4
DRIVE-INDUCED
BACKWARD-WAVE
OSCILLATIONS
.
73
6.4.1
EXCITATION
OF
BACKWARD-WAVE
OSCILLATIONS
IN
LARGE-SIGNAL
DRIVE
74
6.4.2
SIMULATION
RESULTS
.
76
6.4.3
A
CRITERION
FOR
DIBWO
PREDICTION
.
79
6.5
OSCILLATION
SUPPRESSION
.
82
7
POWER
HOLES
85
7.1
REFLECTIONS
.
87
7.2
SIMULATION
APPROACH
.
88
7.3
ANALYSIS
OF
POWER
HOLES
.
89
7.3.1
HOMOGENEOUS
DELAY-LINES
.
90
7.3.2
NON-HOMOGENEOUS
DELAY-LINES
.
91
7.4
SUPPRESSION
OF
POWER
HOLES
.
93
8
CONCLUSION
97
LIST
OF
ACRONYMS
101
LIST
OF
IMPORTANT
SYMBOLS
103
LIST
OF
FIGURES
105
BIBLIOGRAPHY
111 |
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| author | Hägermann, Moritz 1991- |
| author_GND | (DE-588)1270551884 |
| author_facet | Hägermann, Moritz 1991- |
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| discipline_str_mv | Elektrotechnik / Elektronik / Nachrichtentechnik |
| format | Thesis Book |
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| index_date | 2024-07-03T21:12:09Z |
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| physical | vi, 117 Seiten Illustrationen, Diagramme 21 cm |
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| spelling | Hägermann, Moritz 1991- Verfasser (DE-588)1270551884 aut Backward-wave phenomena in helix traveling-wave tube amplifiers von Moritz Hägermann Hamburg 2022 vi, 117 Seiten Illustrationen, Diagramme 21 cm txt rdacontent n rdamedia nc rdacarrier Dissertation Technische Universität Hamburg 2022 Wanderfeldröhre (DE-588)4189063-2 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Wanderfeldröhre (DE-588)4189063-2 s DE-604 Technische Universität Hamburg (DE-588)1112763473 dgg Technische Universität Hamburg Institut für Hochfrequenztechnik (DE-588)112555729X oth B:DE-101 application/pdf https://d-nb.info/1273507843/04 Inhaltsverzeichnis DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=033987264&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis 1\p dnb 20221214 DE-101 https://d-nb.info/provenance/plan#dnb |
| spellingShingle | Hägermann, Moritz 1991- Backward-wave phenomena in helix traveling-wave tube amplifiers Wanderfeldröhre (DE-588)4189063-2 gnd |
| subject_GND | (DE-588)4189063-2 (DE-588)4113937-9 |
| title | Backward-wave phenomena in helix traveling-wave tube amplifiers |
| title_auth | Backward-wave phenomena in helix traveling-wave tube amplifiers |
| title_exact_search | Backward-wave phenomena in helix traveling-wave tube amplifiers |
| title_exact_search_txtP | Backward-wave phenomena in helix traveling-wave tube amplifiers |
| title_full | Backward-wave phenomena in helix traveling-wave tube amplifiers von Moritz Hägermann |
| title_fullStr | Backward-wave phenomena in helix traveling-wave tube amplifiers von Moritz Hägermann |
| title_full_unstemmed | Backward-wave phenomena in helix traveling-wave tube amplifiers von Moritz Hägermann |
| title_short | Backward-wave phenomena in helix traveling-wave tube amplifiers |
| title_sort | backward wave phenomena in helix traveling wave tube amplifiers |
| topic | Wanderfeldröhre (DE-588)4189063-2 gnd |
| topic_facet | Wanderfeldröhre Hochschulschrift |
| url | https://d-nb.info/1273507843/04 http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=033987264&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| work_keys_str_mv | AT hagermannmoritz backwardwavephenomenainhelixtravelingwavetubeamplifiers AT technischeuniversitathamburg backwardwavephenomenainhelixtravelingwavetubeamplifiers AT technischeuniversitathamburginstitutfurhochfrequenztechnik backwardwavephenomenainhelixtravelingwavetubeamplifiers |
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