Design of phase shifters for a group type unidirectional transducer based on interaction analysis

Hiroshi Nogami; Takashi Shiba; Yoshihiko Noro; Akitsuna Yuhara; Koji Oda

doi:10.1109/ULTSYM.1991.234150

Design of phase shifters for a group type unidirectional transducer based on interaction analysis

Hiroshi Nogami, Takashi Shiba, Yoshihiko Noro, Akitsuna Yuhara, Koji Oda

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

A group type unidirectional transducer (CHIT) is useful for a low loss SAW filter. The multi-port network expressions for the GUT are presented, and interaction between the inphase(I) and quadrature(Q) electrodes is studied analytically. The conditions for perfect unidirectivity are described. The design procedures of the phase shifters realizing perfect unidirectivity are shown both in series and parallel configurations for any geometrical phase except π.

Original language	English
Article number	234150
Pages (from-to)	175-180
Number of pages	6
Journal	Proceedings - IEEE Ultrasonics Symposium
DOIs	https://doi.org/10.1109/ULTSYM.1991.234150
Publication status	Published - 1991
Externally published	Yes
Event	1991 IEEE Ultrasonics Symposium. ULTSYM 1991 - Orlando, United States Duration: 1991 Dec 8 → 1991 Dec 11

ASJC Scopus subject areas

Acoustics and Ultrasonics

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10.1109/ULTSYM.1991.234150

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abstract = "A group type unidirectional transducer (CHIT) is useful for a low loss SAW filter. The multi-port network expressions for the GUT are presented, and interaction between the inphase(I) and quadrature(Q) electrodes is studied analytically. The conditions for perfect unidirectivity are described. The design procedures of the phase shifters realizing perfect unidirectivity are shown both in series and parallel configurations for any geometrical phase except π.",

author = "Hiroshi Nogami and Takashi Shiba and Yoshihiko Noro and Akitsuna Yuhara and Koji Oda",

year = "1991",

doi = "10.1109/ULTSYM.1991.234150",

language = "English",

pages = "175--180",

journal = "Proceedings - IEEE Ultrasonics Symposium",

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publisher = "Institute of Electrical and Electronics Engineers Inc.",

note = "1991 IEEE Ultrasonics Symposium. ULTSYM 1991 ; Conference date: 08-12-1991 Through 11-12-1991",

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T1 - Design of phase shifters for a group type unidirectional transducer based on interaction analysis

AU - Nogami, Hiroshi

AU - Shiba, Takashi

AU - Noro, Yoshihiko

AU - Yuhara, Akitsuna

AU - Oda, Koji

PY - 1991

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AB - A group type unidirectional transducer (CHIT) is useful for a low loss SAW filter. The multi-port network expressions for the GUT are presented, and interaction between the inphase(I) and quadrature(Q) electrodes is studied analytically. The conditions for perfect unidirectivity are described. The design procedures of the phase shifters realizing perfect unidirectivity are shown both in series and parallel configurations for any geometrical phase except π.

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T2 - 1991 IEEE Ultrasonics Symposium. ULTSYM 1991

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