JPS61129901A - Microwave band branching and combining device - Google Patents

Microwave band branching and combining device

Info

Publication number
JPS61129901A
JPS61129901A JP25241884A JP25241884A JPS61129901A JP S61129901 A JPS61129901 A JP S61129901A JP 25241884 A JP25241884 A JP 25241884A JP 25241884 A JP25241884 A JP 25241884A JP S61129901 A JPS61129901 A JP S61129901A
Authority
JP
Japan
Prior art keywords
channel
filters
shaped waveguide
channel filters
filter
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.)
Pending
Application number
JP25241884A
Other languages
Japanese (ja)
Inventor
Kazuo Haginuma
萩沼　一夫
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP25241884A priority Critical patent/JPS61129901A/en
Publication of JPS61129901A publication Critical patent/JPS61129901A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
    • H01P1/2138—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies using hollow waveguide filters

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE:To attain ease of mounting and design by changing a thickness inserted to a connection part between a channel filter and a U-shaped waveguide so as to change the electric length between the channel filters. CONSTITUTION:In a 4-wave branching device, the U-shaped waveguide 14 is arranged between the channel filters 10 and 11, the U-shaped waveguide 15 between the channel filters 11 and 12, and the U-shaped waveguide 16 is arranged between the channel filters 12 and 13 respectively via spacers 17 and 17', 18 and 18', and 19 and 19'. The filter 13 is provided with a reflecting plate 20 via a spacer 21. Then an inputted signal of channels f1-f4 is branched from the filters 10-13 respectively. Through the constitution above, the electric length among the filters 10 13 is changed while keeping the sizes of interface l1'-l3' constant by changing the thickness of the spacers 17-19'.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はマイクロ波帯分・合波器、特にチャンネルフィ
ルタとして導波管型のものを用し）たマイクロ波帯分・
合波器に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention is a microwave splitter/combiner, in particular a microwave splitter/combiner using a waveguide type channel filter.
It is related to a multiplexer.

〔従来技術とその問題点〕[Prior art and its problems]

従来のマイクロ波帯分波器を第２図に示す。第２図に置
いて、１，２，３．４はマイクロ波導波管チャンネルフ
ィルタ、５，６，７．８はこれらチャンネルフィルタの
接続部に設けられたスペーサ、９は反射板である。A conventional microwave band splitter is shown in FIG. In FIG. 2, 1, 2, 3.4 are microwave waveguide channel filters, 5, 6, 7.8 are spacers provided at the connecting portions of these channel filters, and 9 is a reflecting plate.

この分波器は４波分波器であり、同図左側の入力端子に
ｆ１〜ｆ４チャンネル信号が入力した時、それをｆ、、
ｆ２．ｆ３．ｒ、の各チャンネル信号に分波するもので
ある。このような分波器においては、良好な分波特性（
振幅特性、電圧定在波比特性）を得る為に、反射板９か
ら各チャンネルフィルタ１．２，３．４迄の距離（第２
図に示すｌＩ、１２，１３．　１４）を調整することが
必要である。又、チャンネル間のガートバンドが狭くな
ると自己チャンネルの通過域に於ける隣接チャンネルの
サセプタンス成分が小さくなく、これを打ち消す為に、
チャンネルフィルタ間の電気長を調整する必要がある。This branching filter is a four-wave branching filter, and when the f1 to f4 channel signals are input to the input terminal on the left side of the figure, they are
f2. f3. r, into each channel signal. Such a duplexer has good demultiplexing characteristics (
amplitude characteristics, voltage standing wave ratio characteristics), the distance from the reflector 9 to each channel filter 1.2, 3.4 (second
lI, 12, 13. shown in the figure. 14) needs to be adjusted. Also, when the guard band between channels narrows, the susceptance component of the adjacent channel in the passband of its own channel is not small, and in order to cancel this,
It is necessary to adjust the electrical length between channel filters.

従来構造の分波器では、距離１．、　１２，１３゜１４
によってチャンネルフィルタ間の電気長が変わる為、距
離１．、Ｎ２．Ｎ３，１４の調整が終る迄、チャンネル
フィルタ間のインターフエイス間隔寸法（第２図に示す
Ｊ’、　、　　ｘ’、、　、　　７！’３　）が定まら
ないため、これより実装設計が進まないという欠点があ
った。In a duplexer with a conventional structure, the distance is 1. , 12,13゜14
Since the electrical length between channel filters changes depending on the distance 1. , N2. Until the adjustment of N3 and 14 is completed, the interface spacing between the channel filters (J', , There were drawbacks.

このような欠点は、分波器だけでなく同じような構造の
合波器においても生じる。Such drawbacks occur not only in demultiplexers but also in multiplexers having a similar structure.

〔発明の目的〕[Purpose of the invention]

本発明の目的は、従来の分波器および合波器における上
述のような欠点を改善した分・合波器を提供することに
ある。SUMMARY OF THE INVENTION An object of the present invention is to provide a splitter/multiplexer that improves the above-mentioned drawbacks of conventional splitters and multiplexers.

〔発明の構成〕[Structure of the invention]

本発明のマイクロ波帯分・合波器は、複数個のマイクロ
波導波管チャンネルフィルタと、隣接する前記チャンネ
ルフィルタをそれぞれ接続するＵ字形導波管と、前記チ
ャンネルフィルタと前記Ｕ字形導波管との間の接続部に
設けられたスペーサとを備え、前記スペーサの厚さを調
整することによって、隣接する前記チャンネルフィルタ
間の電気長を調整できることを特徴としている。The microwave splitter/multiplexer of the present invention includes a plurality of microwave waveguide channel filters, a U-shaped waveguide connecting each of the adjacent channel filters, and a plurality of microwave waveguide channel filters, a U-shaped waveguide connecting the channel filter and the U-shaped waveguide. and a spacer provided at a connecting portion between the channel filters, and by adjusting the thickness of the spacer, the electrical length between the adjacent channel filters can be adjusted.

〔実施例〕〔Example〕

以下１１本発明の実施例を図面を用いて詳細に説明する
。Hereinafter, eleven embodiments of the present invention will be described in detail with reference to the drawings.

第１図は本発明の一実施例である４波分波器を示す図で
ある。この４波分波器は、マイクロ波導波管チャンネル
フィルタ１０，１１，１２．１３と、隣接するチャンネ
ルフィルタ間に配置されたＵ字形導波管１４，１５．１
．６と、チャンネルフィルタとＵ字形導波管との接続部
に設けられたスペーサ１７．１７’、１８．１８’、１
９．１９′と、反射板２０と、チャン藷ルフイルり１３
と反射板２０この間の接続部に設けられたスペーサ２１
とから構成されている。そして、左端の入力端子より入
力されたｆｌ　、ｆ２．ｆ３．ｆ４チャンネル信号は、
それぞれチャンネルフィルり１０゜１１．１２．１３よ
り分波出力される。FIG. 1 is a diagram showing a four-wave duplexer which is an embodiment of the present invention. This four-wave duplexer consists of microwave waveguide channel filters 10, 11, 12.13 and U-shaped waveguides 14, 15.1 arranged between adjacent channel filters.
．． 6, and spacers 17.17', 18.18', 1 provided at the connection between the channel filter and the U-shaped waveguide.
9.19', reflector 20, and channel filter 13
and the reflecting plate 20. A spacer 21 provided at the connection between the
It is composed of. Then, fl, f2 . f3. The f4 channel signal is
Demultiplexed signals are output from channel filters 10°11, 12, and 13, respectively.

このような構成の４波分波器においては、第２図に示し
た従来の分波器と同様に、良好な分波特性を得る為に、
反射板２０から各チャンネルフィルタ１０，１１．１２
．１３迄の距離（第１図Ｇこ示す！＋　、１２．Ａ３．
　　！ｌ＋）を調整し、および隣接チャンネルのサセプ
タンス成分を打ち消す為に、隣接するチャンネルフィル
タ間の電気長を調整しなければならない。In a four-wave demultiplexer with such a configuration, in order to obtain good demultiplexing characteristics, as in the conventional demultiplexer shown in Fig. 2,
From the reflection plate 20 to each channel filter 10, 11.12
．． Distance to 13 (shown in Figure 1G!+, 12.A3.
! The electrical length between adjacent channel filters must be adjusted to adjust the susceptance components of adjacent channels.

本実施例の構造によれば、チャンネルフィルタ間の電気
長は、チャンネルフィルタとＵ字形導波管との間に挿入
されているスペーサ１７．１７’、１８．１８’、１９
．１９’の厚さを変えることによって調整することがで
きる、すなわちチャンネルフィルタ間の電気長は反射板
２０から各チャンネルフィルタ迄の距離／、、１２，１
３，１４に依存しないので、インターフェイス間隔寸法
β′１　、　１’２　、　　β′３を一定にしたまま各
チャンネルフィルタ間の電気長を可変することができる
。したがって、従来の分波器に比べ、インターフェイス
間隔寸法がなかなか決まらない等のことはなくなるので
、実装設計が容易になる。According to the structure of this embodiment, the electrical length between the channel filters is determined by the spacers 17.17', 18.18', and 19 inserted between the channel filter and the U-shaped waveguide.
．． The electrical length between the channel filters can be adjusted by changing the thickness of the channel filters 19'.
3 and 14, the electrical length between each channel filter can be varied while keeping the interface interval dimensions β'1, 1'2, and β'3 constant. Therefore, compared to conventional duplexers, it is no longer difficult to determine the interface spacing dimension, which facilitates mounting design.

上述の実施例では４チヤンネル分波器を例として説明し
たが、本発明は２チャンネル以上の分波器に通用できる
ことは明白である。又、本発明は分波器ばかりでなく合
波器にも通用できることも明白である。Although the above-described embodiment has been explained using a four-channel duplexer as an example, it is clear that the present invention can be applied to a duplexer with two or more channels. Furthermore, it is clear that the present invention is applicable not only to demultiplexers but also to multiplexers.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、本発明によればＵ字形導波管を用
い、チャンネルフィルタとＵ字形導波管との間の接続部
に挿入されるスペーサの厚さを変えることによってチャ
ンネルフィルタ間の電気長を変えるようにしているので
、実装設計が容易な分・合波器を提供することが可能と
なる。As explained above, according to the present invention, a U-shaped waveguide is used, and by changing the thickness of the spacer inserted into the connection between the channel filter and the U-shaped waveguide, the electric current between the channel filters can be increased. Since the length is changed, it is possible to provide a multiplexer/multiplexer that is easy to implement and design.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の一実施例である分波器を示す図、 第２図は従来の分波器を示す図である。 １０．１１，１２．１３ ・・・導波管チャンネルフィルタ １４．１５．１６ ・・・Ｕ字形導波管 １７．１８，１９．２１ ・・・スペーサ ２０・・・・・・反射板 FIG. 1 is a diagram showing a duplexer which is an embodiment of the present invention; FIG. 2 is a diagram showing a conventional duplexer. 10.11, 12.13 ...Waveguide channel filter 14.15.16 ...U-shaped waveguide 17.18, 19.21 ···Spacer 20...Reflector

Claims (1)

【特許請求の範囲】[Claims] （１）複数個のマイクロ波導波管チャンネルフィルタと
、隣接する前記チャンネルフィルタをそれぞれ接続する
Ｕ字形導波管と、前記チャンネルフィルタと前記Ｕ字形
導波管との間の接続部に設けられたスペーサとを備え、
前記スペーサの厚さを調整することによって、隣接する
前記チャンネルフィルタ間の電気長を調整できることを
特徴とするマイクロ波帯分・合波器。(1) A plurality of microwave waveguide channel filters, a U-shaped waveguide connecting each of the adjacent channel filters, and a connecting portion between the channel filter and the U-shaped waveguide. Equipped with a spacer,
A microwave band splitter/multiplexer characterized in that the electrical length between the adjacent channel filters can be adjusted by adjusting the thickness of the spacer.
JP25241884A 1984-11-29 1984-11-29 Microwave band branching and combining device Pending JPS61129901A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25241884A JPS61129901A (en) 1984-11-29 1984-11-29 Microwave band branching and combining device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25241884A JPS61129901A (en) 1984-11-29 1984-11-29 Microwave band branching and combining device

Publications (1)

Publication Number Publication Date
JPS61129901A true JPS61129901A (en) 1986-06-17

Family

ID=17237074

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25241884A Pending JPS61129901A (en) 1984-11-29 1984-11-29 Microwave band branching and combining device

Country Status (1)

Country Link
JP (1) JPS61129901A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010273285A (en) * 2009-05-25 2010-12-02 Mitsubishi Electric Corp Antenna feed circuit
JP2013526144A (en) * 2010-04-16 2013-06-20 アストリウム・リミテッド Multiband filter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010273285A (en) * 2009-05-25 2010-12-02 Mitsubishi Electric Corp Antenna feed circuit
JP2013526144A (en) * 2010-04-16 2013-06-20 アストリウム・リミテッド Multiband filter

Similar Documents

Publication Publication Date Title
US6665113B2 (en) Wavelength converter and wavelength division multiplexing transmission method using same
KR100258183B1 (en) Inter-channel delay compensation multiwavelength channel transmission optical filter
JPS62105116A (en) Double refraction optical multiplexer having flattened band
US3898592A (en) Acoustic surface wave signal processors
JPH11174250A (en) Optical passing band filter
JP2000244459A (en) Junction/branch device capable of being reconstituted for optical fiber communication system
US6697543B2 (en) Optical waveguide filter
JPS61129901A (en) Microwave band branching and combining device
JP2003032196A (en) Bidirectional wave division multiplex system
US6236781B1 (en) Duplicated-port waveguide grating router having substantially flat passbands
Nakazawa et al. Ti: LiNbO3 AOTF for 0.8 nm channel-spaced WDM
US7116907B1 (en) Acousto-optical tunable filters cascaded together
US6643063B2 (en) Deinterleaver with high isolation and dispersion compensation and 50/200GHz interleaver and deinterleaver
JP2001209019A (en) Acousto-optic type variable wavelength TE / TM mode converter and variable wavelength optical filter using the same
US20080138014A1 (en) Wide passband optical interleaver
US6731836B2 (en) Dispersion compensator
JP3159631B2 (en) Waveguide splitter
GB905774A (en) Electrical waveguide arrangements
JPS6351701A (en) Orthogonal polarization branching filter
KR100755342B1 (en) Wavelength Division Multiplexing Devices
JPH103012A (en) Optical wavelength demultiplexing element
JP2882399B2 (en) Tunable optical filter
JP2000266948A (en) Wavelength multiplexer / demultiplexer module
JPS60103835A (en) System for constituting optical switch
JP2001109022A (en) Add / drop filter with switching function