By Kai Chang, Lung?Hwa Hsieh(auth.)
The definitive textual content on microwave ring circuits-now greater than ever
For the previous 3 a long time, the hoop resonator has been accepted in such functions as measurements, filters, oscillators, mixers, couplers, strength dividers/combiners, antennas, and frequency-selective surfaces, to call quite a few. the sphere has persevered to extend, with many new analyses, types, and functions lately reported.
Microwave Ring Circuits and comparable buildings has lengthy been the one textual content totally devoted to the therapy of ring resonators. the second one version has been completely revised to mirror the most up-tp-date advancements within the box. as well as updating the entire unique fabric, the authors have extra wide new assurance on:
* A common version for either oblong and round ring configurations
* functions of ring constructions for all sorts of planar circuits
* a brand new transmission line analysis
* An abundance of latest purposes in bandpass and bandstop filters, couplers, oscillators, and antennas
whereas maintaining the entire good points that made the unique textual content so worthy to either scholars and academics within the box, the second one version seeks to introduce the research and types of ring resonators and to use them to either the outdated and the hot functions, together with microstrip, slotline, coplanar waveguide, and waveguide transmission strains. in keeping with dissertations and papers released through graduate scholars, students, and study affiliates at A&M college, Microwave Ring Circuits and comparable constructions, moment version is certain to be a helpful addition to either engineering school rooms and study libraries within the field.Content:
Chapter 1 advent (pages 1–4):
Chapter 2 research and Modeling of Ring Resonators (pages 5–54):
Chapter three Modes, Perturbations, and Coupling equipment of Ring Resonators (pages 55–96):
Chapter four Electronically Tunable Ring Resonators (pages 97–126):
Chapter five Electronically Switchable Ring Resonators (pages 127–138):
Chapter 6 size purposes utilizing Ring Resonators (pages 139–152):
Chapter 7 clear out functions (pages 153–196):
Chapter eight Ring Couplers (pages 197–240):
Chapter nine Ring Magic?T Circuits (pages 241–270):
Chapter 10 Waveguide Ring Resonators and Filters (pages 271–296):
Chapter eleven Ring Antennas and Frequency?Selective Surfaces (pages 297–329):
Chapter 12 Ring Mixers, Oscillators, and different purposes (pages 330–351):
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The definitive textual content on microwave ring circuits-now larger than ever For the earlier 3 many years, the hoop resonator has been widespread in such purposes as measurements, filters, oscillators, mixers, couplers, strength dividers/combiners, antennas, and frequency-selective surfaces, to call quite a few.
Additional info for Microwave Ring Circuits and Related Structures, Second Edition
Power is coupled into and out of the resonator via two feed lines located at diametrically opposite points. If the distance between the feed lines and the resonator is large, then the coupling gap does not affect the resonant frequencies of the ring. ” Loose coupling is a manifestation of the negligibly small capacitance of the coupling gap. If the feed lines are moved closer to the resonator, however, the coupling becomes tight and the gap capacitance becomes appreciable. This causes the circuit’s resonant frequency to deviate from the intrinsic resonant frequency of the ring.
Westlake Village, Calif. 1 INTRODUCTION According to the simple model and field analysis in Chapter 2, many modes can be supported by the ring resonators. All these modes satisfy the boundary conditions and can be excited if desired. The excitation of these modes depends on the perturbation and coupling methods. This chapter discusses the various mode phenomena, excitation techniques, perturbations, and coupling methods based on references 1 and 2. The mode phenomenon of the annular ring element is caused by different types of excitation and perturbation.
J. Electron. Vol. 45, pp. 81–87, July 1978.  K. C. Gupta, R. Garg, and I. J. , 1979.  I. M. Gottlieb, Basic Oscillators, Rider, New York, 1963.  Z. M. Hejazi, P. S. Excell, and Z. , Vol. 8, pp. 275–277, August 1998.  J. S. Hong and M. J. , Vol. 5, pp. 371–372, November 1995. , Fremont, CA, July 2002. -C. Yu and K. Chang, “Transmission-line analysis of a capacitively coupled microstrip-ring resonator,” IEEE Trans. , Vol. 45, pp. 2018–2024, November 1997.  D. M. Pozar, Microwave Engineering, 2nd ed.
Microwave Ring Circuits and Related Structures, Second Edition by Kai Chang, Lung?Hwa Hsieh(auth.)