| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Research Abstract |
A new planar resonator called frequency-selective multifunction surfaces has been proposed for the development of cutoff-waveguide bandpass filters indispensable for a next-generation millimeter-wave wireless communication. To verify its effectiveness, the proposed resonators were applied to the design of a bandpass filter. As a result, the designed bandpass filter realizes a third-order Chebyshev passband response with 2% bandwidth as well as a wide stopband with 12GHz bandwidth. The size of the designed filter can be reduced to 30% of conventional three-dimensional filter circuits. The proposed resonators and the design techniques enable one to achieve both compact filter size and low-loss characteristics.
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