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End coupled stripline BPF using LTCC in millimeter-wave
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- Authors
- Min-Soo Kang, Bong-Su Kim, Myung-Sun Song
- Issue Date
- 2004-08
- Citation
- International Conference on Microwave and Millimeter Wave Technology (ICMMT) 2004, pp.251-254
- Language
- English
- Type
- Conference Paper
- Abstract
- End coupled stripline BPF using LTCC process in millimeter-wave was designed and fabricated. To design end coupled stripline BPF, the bandgaps of horizontal coupling structure and vertical coupling structure were modeled with w-type capacitance. The bandgap models were verified by a full-wave electromagnetic simulation program. To test a fabricated filter, CPWG-to-stripline transitions were used in input and output ports. To evaluate the validity of this technique, order-3 Chebyschev BPF centered at 44.2 GHz with a 5% fractional bandwidth (FBW) was used. According to design and measurement results, a performance of insertion loss of 3.6 dB and return loss of 18 dB is achieved at full input/output ports, total size of the filter is 512 /spl times/ 3000 /spl times/ 8000 /spl mu/m.
- KSP Keywords
- Coupling structure, End coupled, Fractional Bandwidth(FBW), Return loss(RL), Simulation program, Vertical coupling, coupled stripline, full-wave electromagnetic simulation, input and output, insertion loss, measurement results