Microwave Ring Circuits and Related Structures phần 6 ppsx

... con- figuration of the microstrip rat-race hybrid -ring coupler.To analyze the hybrid- 197 Microwave Ring Circuits and Related Structures, Second Edition, by Kai Chang and Lung-Hwa Hsieh ISBN 0-471-44474-X ... Makimoto and S. Yamashita, Microwave Resonators and Filters for Wireless Communication Theory, Design and Application, Springer, Berlin, 2001, Chap. 4. [28] G. Kum...

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... length l and (b) the T-network equivalent. Microwave Ring Circuits and Related Structures 11.2.5 Overall Input Impedance 3 06 11.2 .6 Computer Simulation 3 06 11.3 Circular Polarization and Dual-Frequency ... 1948– Microwave ring circuits and related structures / Kai Chang, Lung-Hwa Hsieh.—2nd ed. p. cm.—(Wiley series in microwave and optical engineering) In...

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... (2 .67 ) Substituting G 1,2 (0) = 1 into Equation (2 .65 ), the voltages and currents can be obtained as (2 .68 a) (2 .68 b) Based on Equation (2 .68 ), the absolute values of voltage and current stand- ing ... 0 .63 5mm Line width 0 .6 mm Coupling gap 0.1mm Ring radius 6mm = = = = FORCED RESONANT MODES 59 FIGURE 3.4 |S 21 | vs. frequency for the second and third resonances. 42 ANALY...

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... ª Port1 C f C g C r L r C g C f Port2 Port1 C g C r L r C g Port2 Figure 3. 26 Two-port ring circuit (a) configuration and (b) equivalent circuit. UNIPLANAR RING RESONATORS AND COUPLING METHODS 89 Figure 3. 36 CPW ring resonator fed by CPW transmission ... Conf., Vol. 3, pp. 67 8 68 1, 1999. [25] C. E. Saavedra, “Microstrip ring resonator using quarter-wave couplers,” Electron....

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... ring resonator. The ring resonator, shown in Figure 6. 1 is 139 Microwave Ring Circuits and Related Structures, Second Edition, by Kai Chang and Lung-Hwa Hsieh ISBN 0-471-44474-X Copyright © 2004 ... the ring and all integer-numbered (even and odd) modes are passed. When the diode is reverse biased, the boundary conditions will not allow the odd-numbered 127 Microwav...

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... (6. 17) and (6. 18) into Equations (6. 15) and (6. 16) to yield [3] (6. 19) (6. 20) where l g was replaced by and f re and f ro are the measured odd and even resonant frequencies of the perturbed ring. The ... (1.7, 1.84) GHz (1 .67 , 1.81) GHz (f p1 , f p2 ) Coupling Coefficient 0.075 0.078 0.08 K External Q 6. 24 7.9 9 .66 Midband Insertion 2.9 dB 1 .63 dB 1.04 dB Loss IL 3-...

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... ring, ” IEEE Trans. Microwave Theory Tech., Vol. MTT- 16, pp. 361 – 369 , June 1 968 . [4] L.W. Chua,“New broad-band matched hybrids for microwave integrated circuits, ” Proc. 2nd Eur. Microwave Conf., ... November 1 960 . [39] S. March, “A wide band stripline hybrid ring, ” IEEE Trans. Microwave Theory Tech., Vol. 16, p. 361 , June 1 968 . [40] L.W. Chua,“New broad-band matched hy...

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... uniplanar ring reseonators,” IEEE Trans. Microwave Theory Tech., Vol. 41, No. 5, pp. 760 – 766 , May 1993. [24] C. Ho, “Slotline, CPW ring circuits and waveguide ring cavities for coupler and filter ... 198.200 1,190.9 n = 3 16. 564 16. 530 0.210 222.100 2,038 n = 4 18.348 18.333 0.080 194 .60 0 3,570 .6 n = 5 20.3 86 20.395 0.040 183.300 3,823.4 n = 6 22.593 22 .61 5 0.090 1...

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... Symp. Dig., pp. 63 2 63 6, July 2000. CHAPTER ELEVEN Ring Antennas and Frequency- Selective Surfaces 297 Microwave Ring Circuits and Related Structures, Second Edition, by Kai Chang and Lung-Hwa Hsieh ISBN ... (Permission from IEEE.) CHAPTER TWELVE Ring Mixers, Oscillators, and Other Applications 330 Microwave Ring Circuits and Related Structures, Second Editi...

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... resonant modes, 61 67 coupled split modes, 63 64 local resonant split modes, 64 66 notch perturbation split modes, 66 67 patch perturbation split modes, 67 varactor-tuned microstrip ring circuit, ... uniplanar ring resonators, 85–90 Cascaded multiple ring resonators: dual-mode ring bandpass filters, 159– 161 ring bandpass filters, 184–1 86 slow-wave bandpass structure, 1 76...

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