Dielectric filter, dielectric duplexer and communication device
Abstract
Abstract Translated from Japanese (57)【要約】 【課題】 バランを用いることなく平衡型で信号の入出 力を行えるようにした誘電体フィルタ、誘電体デュプレ クサおよびそれらを用いた通信機を構成する。 【解決手段】 誘電体ブロック1に、内面に両端開放の 内導体5a,5bを形成した内導体形成孔2a,2bを 設けて、2つのλ/2共振器を構成し、2つのλ/2共 振器を電磁界結合させて、一方のλ/2共振器の片方の 開放端付近に結合する端子6を不平衡端子、他方のλ/ 2共振器の両方の開放端付近にそれぞれ結合する端子 7,8を平衡端子とする。 (57) [Problem] To provide a dielectric filter, a dielectric duplexer, and a communication device using the same, which can input and output signals in a balanced type without using a balun. SOLUTION: An inner conductor forming holes 2a and 2b having inner conductors 5a and 5b open at both ends are provided in a dielectric block 1 to form two λ / 2 resonators, and two λ / 2 resonators are formed. The resonator is electromagnetically coupled, a terminal 6 coupled near one open end of one λ / 2 resonator is an unbalanced terminal, and the other λ / 2 resonator is an unbalanced terminal. The terminals 7 and 8 respectively connected near both open ends of the two resonators are balanced terminals.
Inventors
- 👤 Motoharu Hiroshima
- 👤 基晴 広嶋
- 👤 Kohachi Nishijima
- 👤 小八 西嶋
- 👤 Hideyuki Kato
- 👤 英幸 加藤
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.