Microwave Ring Circuits and Related Structures phần 5 doc

... 3-dB bandwidth of 15. 5%. The insertion and return losses are 0 .53 dB and 25. 7 dB at 2.3 GHz, respectively. Two attenuation poles are at 1.83 and 2 .59 GHz with attenuation level of 35. 2 and 31.3 ... f o 1. 75 GHz 1. 755 GHz Insertion Loss IL 2.69 dB 0.97 dB 3-dB Bandwidth 70 MHz 150 MHz Loaded Q 25 11.7 External Q 61.16 25. 58 RING SLOW-WAVE BANDPASS FILTERS 177 S 21 S 11 1 .5...

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... Trans. Microwave Theory Tech., Vol. 23, pp. 52 2 52 6, June 19 75. [ 35] G. K. Gopalakrishnan, Microwave and optoelectronic performance of hybrid and monolithic microstrip ring resonator circuits, ”Ph.D. ... w = 0 .58 9 mm for a 30-ohms Line, D=1.397 mm, and l g = 55 .2 95 mm Resonators Annular Open-loop Square U-Shape Ring Ring with the Ring Open-loop Curvature Ring Ef...

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... T. S. Martin, F. Wang, and J. L. Klein, “On the study of microstrip ring and varactor-tuned ring circuits, ” IEEE Trans. Microwave Theory Tech., Vol. MTT- 35, pp. 1288–12 95, December 1987. [19] ... No. 10, pp. 53 5 53 7, May 7, 1987. [28] T. S. Martin, F. Wang, and K. Chang, “Theoretical and experimental investiga- tion of novel varactor-tuned switchable microstrip ring re...

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... Distributed-Circuit Model 45 References 52 3 Modes, Perturbations, and Coupling Methods of Ring Resonators 55 3.1 Introduction 55 3.2 Regular Resonant Modes 55 3.3 Forced Resonant Modes 58 3.4 Split Resonant ... 0.0493 0.0794 -0.4129 -1.0773 5. 9931 4 .51 68 2 1 .52 71 1.42E - 4 0.4729 6.3 852 5. 6221 -1.9139 3.8091 3 2.10 05 4.42E - 6 0.89 95 10.6240 9.61 95 -8.3029 1.8 9...

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... MTT., No. 7, pp. 55 8– 56 6, July 1983. [10] T. –Y.Yun and K. Chang, “Piezoelectric-transducer-controlled tunable microwave circuits, ” IEEE Trans. Microwave Theory Tech., Vol. 50 , No. 5, pp. 1303–1310, ... Trans. Microwave Theory Tech., Vol. 51 , No. 2, pp. 52 0 52 5, February 2003. [13] S. Barker and G. M. Rebeiz, “Distributed MEMS true-time delay phase shifters and wide...

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... Also, the slotline ring dual-mode filter has the advantages of flexible tuning and ease of adding series and shunt components. SLOTLINE RING FILTERS 189 0 -5 -10 - 15 -20 - 25 -30 -40 - 35 - 45 -50 1.8 1.9 2.0 ... from IEEE.) is greater than 13 .5 dB within 1. 95 2. 05 GHz. The out-of-band rejection is better than 50 dB extended to 1 and 3 GHz and beyond. 7.7 PIEZOELECTRIC...

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... slot-strip coupler in finline,” IEEE MTT-S Int. Microwave Symp. Dig., pp. 751 – 753 , June 1991. [ 25] C. Ho, “Slotline, CPW ring circuits and waveguide ring cavities for coupler and filter applications,” Ph.D. dissertation, ... magic-T should have many applications in microwave and millimeter-wave hybrid and monolithic integrated circuits. 252 RING MAGIC-T CIRCUITS FIG...

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... 15. 454 15. 443 0.070 714.900 1,483.13 n = 2 17 .50 2 17.482 0.110 684.900 1 ,55 9.69 n = 3 20.449 20.412 0.180 7 75. 900 2 ,50 5.17 n = 4 23.9 45 23.889 0.230 604.100 2,187.48 TABLE 10.1 Measured Q L and ... a 271 Microwave Ring Circuits and Related Structures, Second Edition, by Kai Chang and Lung-Hwa Hsieh ISBN 0-471-44474-X Copyright © 2004 John Wiley & Sons, Inc. Tabl...

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... 327 326 RING ANTENNAS AND FREQUENCY-SELECTIVE SURFACES 0 5 10 15 20 25 30 35 40 45 50 55 30. 75 31 31. 25 31 .5 31. 75 32 32. 25 32 .5 32. 75 Frequency (GHz) Aperture efficiency (%) FIGURE 11.31 Measured ... reflectarray (a) setup and (b) ring antenna [48]. (Permission from Electronics Letters.) -60 -50 -40 -30 -20 -10 0 - 45 -40 - 35 -30 - 25 -20 - 15 -10 -5...

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... Jr. MICROWAVE RING CIRCUITS AND ANTENNAS • Kai Chang MICROWAVE SOLID-STATE CIRCUITS AND APPLICATIONS • Kai Chang RF AND MICROWAVE WIRELESS SYSTEMS • Kai Chang RF AND MICROWAVE CIRCUIT AND ... uniplanar ring resonators, 85 90 Cascaded multiple ring resonators: dual-mode ring bandpass filters, 159 –161 ring bandpass filters, 184–186 slow-wave bandpass structure,...

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