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We propose a continuous variable phase shifter as a new use of a tunable filter. To obtain a large phase shift, the filter is designed using the ideal transform function of the generalized Chebyshev function with real zero. The generalized Chebyshev function with real zero is realized by 4 resonators and jump coupling between resonators. The phase shifter tunes the center frequency by 4 dielectric...
We have proposed a 3 GHz band high-sensitivity superconducting front-end T/R module for an active phased array antenna. This T/R module consists of a transmitter circuit and a receiver circuit with a cryogenic part composed of a high-Tc superconducting filter and a cryogenic low-noise amplifier. Low profile could be realized by the two techniques, which are the RF interface technique using resonator...
We have developed a high-sensitivity superconducting sub-array module for an X-band active phased array antenna. This sub-array module can be assumed as a multichannel T/R module with 16 antenna elements. And the module also includes 16 transmitting (TX) channels and 16 receiving (RX) channels with high-Tc superconducting (HTS) filters. By means of this sub-array module, a high-sensitivity antenna...
We have developed a low-profile high-sensitivity sub-array module for an active phased array antenna. By using this sub-array module, a low noise receiving antenna can be easily available for wireless applications such as radar systems, communication systems, and so on. In this paper, we describe the new 16 elements S-band multichannel receiving sub-array module using high-temperature superconducting...
We have developed a high sensitivity receiving sub-array module for an active phased array antenna. By this sub-array module, a low noise receiving antenna can be easily available for wireless applications such as communication systems, radar systems, and so on. In this paper, we describe the 16 elements S-band multichannel receiving sub-array module using high-temperature superconducting (HTS) filters...
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