Stripline resonator

• US 5,525,954 A
• Filed: 07/22/1994
• Issued: 06/11/1996
• Est. Priority Date: 08/09/1993
• Status: Expired due to Term

• Current Assignee: Oki Semiconductor Company Limited (ROHM Co., Ltd.)
• Original Assignee: OKI Electric Industry Company Limited
• Inventors: Shimizu, Kohichiro, Nogichi, Kazushige, Okada, Yoshio, Iwata, Masao, Horii, Hiroyuki, Komazaki, Tomokazu, Gunji, Katsuhiko, Yasuoka, Toshikazu
• Primary Examiner(s): GENSLER, PAUL L
• Application Number:
  US08/277,289
• Time in Patent Office: 690 Days
• Field of Search: 333/204, 333/205, 333/219, 333/222, 333/223, 333/235
• US Class Current: 333/219
• CPC Class Codes: H01P 7/082 Microstripline resonators H01P7/088 takes precedence
• CPC Class Codes: H01P 7/084 Triplate line resonators H01P7/088 takes precedence

Abstract

A stripline resonator is constructed of a dielectric plate having a ground electrode formed on a side surface thereof, an open-ended λ/2 long stripline arranged on a top surface of the dielectric plate, an input terminal to which signals are inputted, said input terminal is connected to one end of the open-ended λ/2 long stripline, a first reactance element connected either in series or in parallel between the input terminal and the open-ended λ/2 long stripline, and a second reactance element connected at one end thereof to an opposite end of the open-ended λ/2 long stripline and at an opposite end to a ground electrode.

Claims

1. A stripline resonator, comprising:

an input terminal;

an open-ended λ

/2 long stripline arranged on a dielectric plate;

a first reactance element having one end connected to said input terminal and an opposite end connected to one end of said open-ended λ

/2 long stripline; and

a second reactance element having one end connected to an opposite end of said open-ended λ

/2 long stripline and an opposite end which is grounded.

2. A stripline resonator comprising:

a first dielectric plate and a second dielectric plate arranged in a multilayer structure, wherein said first dielectric plate includes;

a ground electrode,

an input terminal extending from a top surface to a bottom surface of said first dielectric plate and electrically connecting said top surface and said bottom surface,

a short-ended stripline having one end connected to said input terminal on a side of said top surface and an opposite end connected to said ground electrode and having an inductance component,

a connecting terminal extending from said top surface to said bottom surface and electrically connecting said top surface and said bottom surface, and

a capacitance element having one end connected to said connecting terminal on the side of said top surface and an opposite end connected to said ground electrode; and

said second dielectric plate includes an open-ended λ

/2 long stripline, said first dielectric plate and said second dielectric plate being stacked together, and said open-ended λ

/2 long stripline having one end connected to said input terminal on a side of said bottom surface and an opposite end connected to said connecting terminal on the side of said bottom surface.

3. A stripline resonator according to claim 2, wherein said open-ended λ

/2 long stripline is divided into a plurality of parts and arranged on said first and second dielectric plates.

4. A stripline resonator, comprising:

a first dielectric plate and a second dielectric plate arranged in a multilayer structure, wherein said first dielectric plate includes;

a ground electrode,

a first connecting terminal extending from a top surface to a bottom surface of said first dielectric plate and electrically connecting said top surface and said bottom surface,

an inductance element having one end connected to an input terminal on a side of said top surface and an opposite end connected to said first connecting terminal on the side of said top surface,

a second connecting terminal extending from said top surface to said bottom surface and electrically connecting said top surface and said bottom surface, and

a capacitance element having one end connected to said second connecting terminal on the side of said top surface and an opposite end connected to said ground electrode; and

said second dielectric plate includes;

an open-ended λ

/2 long stripline, said first dielectric plate and said second dielectric plate being stacked together, and said open-ended λ

/2 long stripline having one end connected to said input terminal on a side of said bottom surface and an opposite end connected to said second connecting terminal on the side of said bottom surface.

5. A stripline resonator according to claim 4, wherein said open-ended λ

/2 long stripline is divided into a plurality of parts and arranged on said first and second dielectric plates.

6. A stripline resonator comprising:

a first dielectric plate and a second dielectric plate arranged in a multilayer structure, wherein said first dielectric plate includes;

a ground electrode,

an input terminal on a top surface of said first dielectric plate,

a first connecting terminal extending from said top surface to a bottom surface of said first dielectric plate and electrically connecting said top surface and said bottom surface,

a first capacitance element having one end connected to said input terminal and an opposite end connected to said first connecting terminal on a side of said top surface,

a second connecting terminal extending from said top surface to said bottom surface and electrically connecting said top surface and said bottom surface,

a second capacitance element having one end connected to said second connecting terminal on the side of said top surface and an opposite end connected to said ground electrode; and

said second dielectric plate includes;

an open-ended λ

/2 long stripline, said first dielectric plate and said second dielectric plate being stacked together, said open-ended λ

/2 long stripline having one end connected to said input terminal on said bottom surface and an opposite end connected to said second connecting terminal on the side of said bottom surface.

7. A stripline resonator according to claim 6, wherein said open-ended λ

/2 long stripline is divided into a plurality of parts and arranged on said first and second dielectric plates.

8. A stripline resonator, comprising:

a first dielectric plate and a second dielectric plate arranged in a multilayer structure, wherein said first dielectric plate includes;

a ground electrode,

an input terminal extending from a top surface to a bottom surface of said first dielectric plate and electrically connecting said top surface and said bottom surface,

a first capacitance element having one end connected to said input terminal on a side of said top surface and an opposite end connected to said ground electrode,

a connecting terminal extending from said top surface to said bottom surface and electrically connecting said top surface and said bottom surface, and

a second capacitance element having one end connected to said connecting terminal on the side of said top surface and an opposite end connected to said ground electrode; and

said second dielectric plate includes;

an open-ended λ

/2 long stripline, said first dielectric plate and said second dielectric plate being stacked together, said open-ended λ

/2 long stripline having one end connected to said input terminal on a side of said bottom surface and an opposite end connected to said connecting terminal on the side of said bottom surface.

9. A stripline resonator according to claim 8, wherein said open-ended λ

/2 long stripline is divided into a plurality of parts and arranged on said first and second dielectric plates.

10. A stripline resonator, comprising:

a first dielectric plate and a second dielectric plate arranged in a multilayer structure, wherein said first dielectric plate includes;

a ground electrode,

an input terminal extending from a top surface to a bottom surface of said first dielectric plate and electrically connecting said top surface and said bottom surface,

a first reactance element having one end connected to said input terminal on a side of said top surface and an opposite end connected to said ground electrode,

a connecting terminal extending from said top surface to said bottom surface and electrically connecting said top surface and said bottom surface,

a second reactance element having one end connected to said connecting terminal on the side of said top surface and an opposite end connected to said ground electrode,

at least one connecting electrode extending from said top surface to said bottom surface and electrically connecting said top surface and said bottom surface, and

a third reactance element having one end connected to said connecting electrode on the side of said top surface and an opposite end connected to said ground electrode; and

said second dielectric plate includes;

an open-ended λ

/2 long stripline, and

at least one contact arranged on said open-ended λ

/2 long stripline,

wherein said first dielectric plate and said second dielectric plate are stacked together, said open-ended λ

/2 long stripline has one end connected to said input terminal on a side of said bottom surface and an opposite end connected to said connecting terminal on the side of said bottom surface, and said contact is connected to said connecting electrode on the side of said bottom surface.