High Order Harmonic Oscillators in Microwave and Millimeter-wave ...

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1 Introduction Chapter 7 summarizes all the SEHOs and their application of the VCO and the coupled push-push oscillator. The promising potentiality of the proposed oscillator is also mentioned. 7
2 Oscillators In this chapter, the principles of several oscillators are described. First, we explain a feedback type transistor oscillator circuits, including the well-known Hartley and Colpitts configurations as well as crystal controlled oscillators. Second, we consider oscillators for use at microwave frequencies which differ from their lower frequency counterparts primarily due to different transistor characteristics and the ability to make practical use of negative resistance devices. We also discuss the important topic of oscillator phase noise. Finally an introduction to push-push oscillator is given. 2.1 Introduction to Oscillators 2.1.1 Microwave and Millimeter-wave Oscillators Oscillators are universally found in all wireless communication and radar systems to provide signal sources for frequency conversion and carrier generation [8]. A solid-state oscillator uses an active nonlinear device such as a diode or transistor in conjunction with a passive circuit to convert DC to a sinusoidal steady-state high frequency signal. Basic transistor oscillator circuits can generally be used at low frequencies, often with crystal resonators to provide improved frequency stability and low noise performance. At higher frequencies, diodes or transistors biased at a negative resistance operating point can be used with cavity, transmission line, or dielectric resonators to produce fundamental frequency oscillations up to 100 GHz. Alternatively, frequency multipliers can be used to produce power at millimeter-wave frequencies. Because of the non-linearity of active devices, rigorous analysis and design of oscillator circuit is very difficult. Important considerations for oscillators used in microwave and millimeter-wave systems include the following: • harmonics (specified in dBc below carrier) 8
Page 1 and 2: High Order Harmonic Oscillators in
Page 3 and 4: Acknowledgement I would especially
Page 5 and 6: Chapter 3 describes the 8th harmoni
Page 7 and 8: Contents Preface ii 1 Introduction
Page 9 and 10: 6.1.5 Summary . . . . . . . . . . .
Page 11 and 12: 1 Introduction 1.2 Concept and Tech
Page 13 and 14: 1 Introduction The proposed oscilla
Page 15: 1 Introduction push-push oscillator
Page 19 and 20: 2 Oscillators V1 Base/ gate Collect
Page 21 and 22: 2 Oscillators leads to two of the m
Page 23 and 24: 2 Oscillators 2.3 Negative Resistan
Page 25 and 26: 2 Oscillators or ∂R t ∂I ∂X T
Page 27 and 28: 2 Oscillators 2.4 Oscillator Phase
Page 29 and 30: 2 Oscillators signal at ω 0 . When
Page 31 and 32: 2 Oscillators Noise power (dB) 1/f
Page 33 and 34: 2 Oscillators Sθ(ω) 1 f 3 1 f 2 k
Page 35 and 36: 2 Oscillators 2.5 Push-push Oscilla
Page 37 and 38: 3 8th Harmonic Oscillator 3.1 8th H
Page 39 and 40: 3 8th Harmonic Oscillator 3.1.1 The
Page 41 and 42: 3 8th Harmonic Oscillator λg/2@f0
Page 43 and 44: 3 8th Harmonic Oscillator C λg/2@f
Page 45 and 46: 3 8th Harmonic Oscillator 3.1.3 Fab
Page 47 and 48: 3 8th Harmonic Oscillator Fig. 3.11
Page 49 and 50: 3 8th Harmonic Oscillator 3.2 Octa-
Page 51 and 52: 3 8th Harmonic Oscillator Figure 3.
Page 61 and 62: 3 8th Harmonic Oscillator 3.3 Compa
Page 63 and 64: 4 Gunn Diode Harmonic Oscillator Th
Page 65 and 66: 4 Gunn Diode Harmonic Oscillator Ou
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4 Gunn Diode Harmonic Oscillator #N
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4 Gunn Diode Harmonic Oscillator 2f
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4 Gunn Diode Harmonic Oscillator a
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4 Gunn Diode Harmonic Oscillator ve
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4 Gunn Diode Harmonic Oscillator Fi
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4 Gunn Diode Harmonic Oscillator Fi
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5 Ku-Band Push-push VCO Using Branc
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offset 1MHz offset 100kHz 5 Ku-Band
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6 Coupled Push-push Oscillator Arra
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7 Conclusion This dissertation pres
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References [1] http://www.ntt.co.jp
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[21] K. Kawahata, T. Tanaka and M.
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[40] H. Eisele and G. I. Haddad,
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[58] J. Birkeland, and T. Itoh, “
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[77] T. Ohira “Extended Adler’s
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[3] Kengo Kawasaki, Takayuki Tanaka
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