WO2023163004A1 - 分布定数回路 - Google Patents

分布定数回路 Download PDF

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Publication number
WO2023163004A1
WO2023163004A1 PCT/JP2023/006337 JP2023006337W WO2023163004A1 WO 2023163004 A1 WO2023163004 A1 WO 2023163004A1 JP 2023006337 W JP2023006337 W JP 2023006337W WO 2023163004 A1 WO2023163004 A1 WO 2023163004A1
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WO
WIPO (PCT)
Prior art keywords
line
distributed constant
constant circuit
series inductor
series
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2023/006337
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English (en)
French (fr)
Japanese (ja)
Inventor
郁弥 長澤
大志 関口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rohm Co Ltd
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Rohm Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rohm Co Ltd filed Critical Rohm Co Ltd
Priority to JP2024503186A priority Critical patent/JPWO2023163004A1/ja
Publication of WO2023163004A1 publication Critical patent/WO2023163004A1/ja
Priority to US18/775,941 priority patent/US20240372240A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/201—Filters for transverse electromagnetic waves
    • H01P1/203—Strip line filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/2005—Electromagnetic photonic bandgaps [EPB], or photonic bandgaps [PBG]

Definitions

  • a bandpass filter circuit when configuring a band-pass filter circuit, it is generally known to combine an inductor and a capacitor to form a passive filter that utilizes resonance circuit characteristics. Also, it is known that a bandpass filter circuit can be realized by a lumped constant circuit simulating an equivalent circuit of the Su-Schrieffer-Heeger model (hereinafter referred to as SSH model) having topological characteristics.
  • SSH model Su-Schrieffer-Heeger model
  • the 2A, 2B, and 2C are the YZ planes viewed from the X direction. That is, the first direction of the dielectric 1 is called the X direction, the second direction crossing the X direction is called the Y direction, and the third direction is called the Z direction. In the following description, the first direction is the X direction, the second direction is the Y direction, and the third direction is the Z direction.
  • the transmission line 2 is arranged on the first main surface 1a as shown in FIGS. 1A and 1B.
  • the transmission line 2 has first lines 21 1 and 21 2 , second lines 22 1 and 22 2 and a third line 23 1 formed with different line widths, as shown in FIG. 1A.
  • the transmission lines 2 include first lines 21 1 , 21 2 , 21 3 , second lines 22 1 , 22 2 , 22 3 , 22 4 and second lines 22 1 , 22 2 , 22 3 , 22 4 which are formed with different line widths. It has 3 lines 23 1 and 23 2 .
  • the first lines 21 1 , 21 2 , 21 3 , the second lines 22 1 , 22 2 , 22 3 , 22 4 , and the third lines 23 1 , 23 2 are made of highly conductive metal. Specifically, copper (Cu), aluminum (Al), and gold (Au) are applicable.
  • the transmission line 2 includes a first line 21 1 , a second line 22 1 , a third line 23 1 , a second line 22 2 and a first line 21 2 as a configuration for one period. It comprises periodic structures 100 arranged in series in sequence. 1A, the transmission line 2 is electrically connected to the first line 21 1 , the second line 22 1 , the third line 23 1 , the second line 22 2 , and the first line 21 2 . ing. In the following description, the structure in which the first line 21 1 , the second line 22 1 , the third line 23 1 , the second line 22 2 , and the first line 21 2 are arranged in series in this order is referred to as a periodic structure 100 . Note that the number of periodic structures 100 is not limited to one.
  • the transmission line 2 has a configuration for two cycles, consisting of a first line 21 1 , a second line 22 1 , a third line 23 1 , a second line 22 2 , and a first line 21 2 . and the periodic structure 200 arranged in series in the order of the first line 21 2 , the second line 22 3 , the third line 23 2 , the second line 22 4 , and the first line 21 3 .
  • the transmission line 2 is electrically connected to the first line 21 2 , the second line 22 3 , the third line 23 2 , the second line 22 4 , and the first line 21 3 . ing.
  • the first line 21 1 is formed with a narrow line width WLa as a microstrip line of the transmission line 2 in the Y direction, and functions as a first series inductor La. ing. As shown in FIG. 2A, the first line 21 1 is arranged on the first main surface 1a facing the second main surface 1b on which the ground electrode 3 is arranged, with the dielectric 1 interposed therebetween.
  • the second line 22 1 is formed as a microstrip line of the transmission line 2 with a wide line width WC in the Y direction, and functions as a parallel capacitor C. .
  • the second line 22 1 is arranged on the first main surface 1a, as shown in FIG. 2B.
  • the line width WC of the second line 22 1 is wider than the line width WLa of the first line 21 1 and the line width WLb of the third line 23 1 , as shown in FIGS. 1A and 1B.
  • the transmission line 2 may be provided with an active circuit, for example, in the middle between the microstrip lines. That is, an active circuit may be electrically connected between the transmission lines 2 .
  • the active circuit can be, for example, a terahertz wave integrated circuit, a resonant tunneling diode (RTD: also called a resonant tunneling diode), a MOS element, an active filter circuit, or the like.
  • the periodic structures 100 and 200 of the transmission line 2 are configured for two cycles as a first series inductor La, a parallel capacitor C, a second series inductor Lb, a parallel capacitor C, and a first series inductor. It can be expressed as a configuration in which La is electrically connected in order.
  • the equivalent circuit of the periodic structures 100 and 200 of the transmission line 2 includes a first series inductor La, a second series inductor Lb connected in series with the first series inductor La, and a first series inductor La and the second series inductor Lb, and a parallel capacitor C electrically connected between the ground electrode 3 and the connection point of the second series inductor Lb. That is, the first lines 21 1 and 21 2 have a first series inductor La, the second lines 22 1 and 22 2 have a parallel capacitor C, and the third line 23 1 has a second series inductor Lb. .
  • the second series inductor Lb has an inductance higher than that of the first series inductor La (Lb>La).
  • the distributed constant circuit 10 includes the transmission line 2 arranged on the first main surface 1a of the dielectric 1, so that the process steps can be simplified.
  • FIG. 4A is an explanatory diagram of the Su-Schrieffer-Heeger model (hereinafter referred to as the SSH model) showing a case without topological properties.
  • FIG. 4B is an explanatory diagram of the SSH model showing the case with topological properties.
  • FIG . 5 shows polyacetylene having carbon atoms 51 1 , . . . 51 4 , 52 1 , . 4 is an explanatory diagram indicated by 4.
  • FIG. 52 4 single bonds 61 1 , 61 2 , 61 3 , and double bonds 62 1 , . 1 is an equivalent circuit diagram.
  • the equivalent circuit of FIG. 6 In order for the equivalent circuit of FIG. 6 to have topological characteristics, the equivalent circuit of the configuration of FIG. 4B is required. That is , the equivalent circuit of FIG . , first series inductor 62 2 A, parallel capacitor 52 2 A, and second series inductor 61 2 A in that order. That is, the equivalent circuits of the periodic structure 100 shown in FIG. 3A and the periodic structures 100 and 200 shown in FIG. 3B have topological characteristics.
  • the transmission line 2A has a microstrip line. That is, the transmission line 2A can be formed by, for example, a microstrip line transmission line. Note that the transmission line 2A is not limited to a microstrip line. In the following description, the transmission line 2A will be described using a microstrip line as an example.
  • the transmission line 2A includes a first line 21 1 A, a second line 22 1 A, a third line 23 1 A , a second line 22 2 A, and a first line 22 2 A as a configuration for two cycles.
  • the periodic structure 100A which is the order of the line 21 2 A, and the order of the first line 21 2 A, the second line 22 3 A, the third line 23 2 A, the second line 22 4 A, and the first line 21 3 A.
  • the transmission line 2A includes a first line 21 2 A, a second line 22 3 A, a third line 23 2 A, a second line 22 4 A, and a first line 21 3 A. electrically connected.
  • the periodic structures 200B and 300B are arranged in series in the X direction in the order of the first line 21B, the second line 22B, the third line 23B, the second line 22B, and the first line 21B. It also includes periodic structures 400B, 500B, and 600B arranged in series in the order of the first line 21B, the second line 22B, the third line 23B, the second line 22B, and the first line 21B in the Y direction.
  • the first line 21B, the second line 22B, the third line 23B, the second line 22B, and the first line 21B are electrically connected in the periodic structures 200B, 300B, 400B, 500B, and 600B. It is Note that the number of periodic structures 100B is not limited to one. Also, a plurality of periodic structures 100B, 200B, 300B, 400B, 500B, and 600B may be electrically connected.
  • the periodic structures 100B, 200B, 300B, 400B, 500B, and 600B of the transmission line 2B are structures in which a first series inductor La, a parallel capacitor C, and a second series inductor Lb are electrically connected in order.
  • the peripheral portion of the periodic structure (here, the first series inductor La and the second series inductor Lb) can be conducted at a specific frequency.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Semiconductor Integrated Circuits (AREA)
PCT/JP2023/006337 2022-02-22 2023-02-22 分布定数回路 Ceased WO2023163004A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2024503186A JPWO2023163004A1 (https=) 2022-02-22 2023-02-22
US18/775,941 US20240372240A1 (en) 2022-02-22 2024-07-17 Distributed constant circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-025817 2022-02-22
JP2022025817 2022-02-22

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/775,941 Continuation US20240372240A1 (en) 2022-02-22 2024-07-17 Distributed constant circuit

Publications (1)

Publication Number Publication Date
WO2023163004A1 true WO2023163004A1 (ja) 2023-08-31

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PCT/JP2023/006337 Ceased WO2023163004A1 (ja) 2022-02-22 2023-02-22 分布定数回路

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US (1) US20240372240A1 (https=)
JP (1) JPWO2023163004A1 (https=)
WO (1) WO2023163004A1 (https=)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1926501A1 (de) * 1969-05-23 1970-11-26 Siemens Ag Tiefpassfilter fuer elektrische Schwingungen
US5280256A (en) * 1991-08-23 1994-01-18 The United States Of America As Represented By The Secretary Of The Army Limiting filter
EP1067619A1 (en) * 1999-06-29 2001-01-10 Filtronic LK Oy Low-pass filter
KR20030077715A (ko) * 2002-03-26 2003-10-04 주식회사 현대시스콤 이동통신시스템에서 싱글 사이드 라디얼 스터브와 단계적마이크로스트립 라인을 이용한 분산 엘피에프

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4233579A (en) * 1979-06-06 1980-11-11 Bell Telephone Laboratories, Incorporated Technique for suppressing spurious resonances in strip transmission line circuits
EP0469779B1 (en) * 1990-07-30 1999-09-29 Sony Corporation A matching device for a microstrip antenna
JP4770718B2 (ja) * 2006-11-21 2011-09-14 横河電機株式会社 高周波フィルタ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1926501A1 (de) * 1969-05-23 1970-11-26 Siemens Ag Tiefpassfilter fuer elektrische Schwingungen
US5280256A (en) * 1991-08-23 1994-01-18 The United States Of America As Represented By The Secretary Of The Army Limiting filter
EP1067619A1 (en) * 1999-06-29 2001-01-10 Filtronic LK Oy Low-pass filter
KR20030077715A (ko) * 2002-03-26 2003-10-04 주식회사 현대시스콤 이동통신시스템에서 싱글 사이드 라디얼 스터브와 단계적마이크로스트립 라인을 이용한 분산 엘피에프

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US20240372240A1 (en) 2024-11-07
JPWO2023163004A1 (https=) 2023-08-31

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