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On the other hand, the broken lines are computed from the equivalent circuit shown in Figure 4(a). The agreement between the solid and broken lines is good at frequencies around the stopbands, and at frequencies in the passband between the dual stopbands.The microstrip filter is fabricated and then measured using a network analyzer HP8510C. The measured data are drawn in Figure 8 by solid lines, and are compared with the broken lines simulated by Sonnet em when taking into account of the dielectric and copper ( ϭ 58 ϫ 10 6 S/m) losses. Over both the passband and stopbands, an excellent agreement is observed between the solid and broken lines. CONCLUSIONA novel circuit of DBBSF using composite shunt resonators is proposed, and its design method is described. A 2-degree microstrip DBBSF with center frequencies of 1.7 and 2.3 GHz is designed, fabricated, and tested. The measured frequency response agrees excellently with the theoretical prediction, and this validates our proposed design method and filter structure well. ACKNOWLEDGMENTS ABSTRACT: We report an optically pumped vertical external cavity surface-emitting laser based on InGaAs/GaAs single wavelength continuous-wave output beam at 977 nm. V-Cavity second-harmonic generation was achieved in lithium triborate to produce 480 mW at 488 nm in output beams. There is no significance decrease in second harmonic output power up to 3 h test.ABSTRACT: A compact multiband internal antenna has been proposed for multistandard personal communication handsets. The antenna simultaneously covers various frequency bands such as GSM, DCS, PCS, UMTS, WiBro, Bluetooth, S-DMB, and WLAN. Total volume of the antenna is 0.78 cm 3 (2.6 cm ϫ 1.5 cm ϫ 0.2 cm) that makes it attractive for multiband slim handsets. Measured performances of the prototype antenna are acceptable at all the targeted frequency bands.