201112549 六、發明說明： 【發明所屬之技術領域】 本發明係有關於複數條同軸纜線連接於中間基板的同 軸纜線線束。 【先前技術】 近年來，電子機器除謀求小型化或輕量化外，亦期盼 達成高速化、高畫質化。所以，在機器本體與顯示部的連 接或機器內的配線等，使用極細的同軸纜線。又，從配線 之容易度的觀點考量，有使用複數條同軸纜線集合成一體 的同軸纜線線束。 此種同軸纜線的末端部分係銲接於連接器端子或基板 等，並藉由使用導線性接著材的接著、熔接等而連接固定^ 作爲連接固定於基板的形態而言，習知爲在芯線或連 接於密封部之電路圖案交互錯開地配列於表背面之對向面 而構成的連接基板上，將單位纜線從其端部以例如連接基 板之表面側、背面側、表面側及背面側的順序，交互地配 列連接的構成（例如參照專利文獻1 )。 〔先行技術文献〕 〔專利文献〕 〔專利文獻1〕日本特開2005-25971號 【發明內容】 〔發明所欲解決之課題〕 根據上述技術，雖可進行能將連接部分之各線的間距 設成比各線的直徑還小的高密度安裝，然而，當各同軸纜 201112549 線之信號線彼此的間隔變窄時，鄰接的信號線間容易產生 串擾（crosstalk)等的電性干擾。 於是’本發明之目的在於提供一種同軸纜線線束，其 使用直徑比連接部分之各線的間距還粗的電線，且可確保 良好的電氣特性。 〔用以解決課題之手段〕 可解決上述課題之本發明的同軸纜線線束，其具備複 數條同軸纜線與中間基板，該同軸纜線具有中心導體、配 設於前述中心導體外周的内部絶緣體、配設於前述内部絶 緣體外周的外部導體、以及配設於前述外部導體外周的外 覆層，而該中間基板連接有前述同軸纜線的至少一端側， 該同軸纜線線束的特徵爲： 前述複數條同軸纜線連接於前述中間基板的表面及背 面； 上述中間基板的表面及背面具有：配列成既定間距且 連接有前述中心導體的複數個信號線部、連接有前述外部 導體的接地部、以及從前述接地部延伸於前述信號線部之 間的保護接地部； 前述信號線部的配列位置係在前述中間基板的表面背 面挪移半間距份量，且於各連接面之前述信號線部的相反 面側配置有前述保護接地部； 在前述中間基板的表面，前述信號線部係以前述既定 間距配列於前述中間基板的一端部，在前述信號線部彼此 201112549 間配列有可與連接器之端子導通的複數個接點，前述中間 基板背面的前述信號線部係經由通孔與前述接點導通。 在本發明的同軸纜線線束中，較佳爲，在前述中間基 板背面的前述信號線部，前述中心導體的連接位置係以前 述通孔之長度的程度比前述中間基板表面之前述中心導體 的連接位置偏靠前述貫通孔。 [發明效果] 根據本發明，可在中間基板的表面及背面分別連接複 數條同軸纜線。由於在中間基板的表面背面於信號線部間 配置有保護接地部，故可抑制在鄰接的信號線部彼此間所 產生之串擾等的電性干擾。此外，可將同軸纜線的中心導 體因應保護接地部的程度而變粗。亦即，可作成一種使用 直徑比連接器部分的各線間距還粗的電線，且可確保良好 的電氣特性之同軸纜線線束。 【實施方式】 以下，就本發明之同軸纜線線束的實施形態例進行說 明。 本發明之同軸纜線線束，雖可採用兩端側分別連接至 中間基板的情況、或僅一端側連接至中間基板而另一端側 附設連接器的情況等的各種形態，但僅針對一端側連接至 中間基板的構成作説明。 如第1圖所示，構成同軸纜線線束的同軸纜線11具有 中心導體1 2、配設於中心導體1 2之外周的内部絶緣體1 3、 201112549 配設於内部絶緣體13之外周的外部導體14及配設於外部 導體14之外周的絶緣性外覆層15,並將此等構件建構成配 設成同軸狀。 同軸纜線1 1係使用例如比依照AWG ( American Wire Gauge :美國電線規格）之規格的AWG32還細的纜線。例 如’在比AWG32還細的AWG42的同軸纜線11中，中心導 體12係撚合有七條外徑爲〇.〇25mm的鍍錫銅合金或鍍銀銅 合金的素線12a而形成。又，内部絶緣體13係由被覆中心 導體1 2的外周面之例如PFA等的氟樹脂所構成，其形成爲 0.17mm的外徑。再者，外部導體14係藉由將外徑爲0.03mm 之例如鑛錫銅合金的素線1 4a以橫捲或編組的方式捲繞於 内部絶緣體13的外周面，而形成爲0.2 3 mm的外徑。此外， 外覆層1 5係由被覆外部導體1 4的外周面之例如PFA等的 氟樹脂構成，其在是AWG40的情況下形成爲0.31mm的外 徑，在是AWG32的情況下則形成爲約1.0 mm的外徑。 如第2圖及第3圖所示，構成同軸纜線線束10之同軸 纜線11的端部被施作有露出開口處理，使中心導體12、内 部絶緣體1 3及外部導體1 4分別階段式地依序從同軸纜線 1 1的前端側露出既定長度。 並且，經由這樣的露出開口處理後的複數條同軸纜線 1 1係連接於中間基板2 1。同軸纜線1 1的端部係以容易連 接於中間基板21的方式作成配列成平面狀的集合體，而同 軸纜線1 1之端部以外的部分亦可加以捆束。 Ϊ-. 201112549 中間基板2 1的表面與背面分別作成爲連接面3 1、4 1， 在此等連接面3 1、4 1上分別連接有複數條同軸纜線丨丨。此 中間基板21係由例如具有金屬箔等配線圖案的撓性基板 或硬質基板構成。 如第2(a)圖及第3(a)圖所示，在表面側的連接面 3 1，以既定的並列間距P形成有構成複數條帶狀配線圖案 的信號線部32。信號線部32係分別形成延伸至中間基板 21的前端部（連接方向的前端），且其前端部被作成接點 32a。此外，此信號線部32的配列間距P係以例如〇.3mm 以上、1.0mm以下爲佳。 又，於連接面31形成有接地圖案（ground pattern)33。 接地圖案3 3具有：在比信號線部32更靠後端側之處沿寬 度方向延伸的接地部34 ;以及從該接地部34朝中間基板 2 1的前端部延伸於信號線部3 2之間的複數條帶狀保護接 地（guard ground )部35。保護接地部35亦朝中間基板21 的寬度方向以既定間距P配置。信號線部3 2與保護接地部 3 5 ’彼此隔著微小的隙間交互地配置於寬度方向上。 又，於連接面31上，在各個保護接地部35的前端側， 與保護接地部3 5保持隙間地設有接點3 6。接點3 6係藉通 孔37與形成於背面側之連接面4 1的信號線部42導通。此 等接點3 6亦以既定間距P沿中間基板2 1的寬度方向配置。 連接至連接面3 1的同軸纜線1 1係以既定間距P沿中 間基板21的寬度方向配置，其外部導體14係配置成與接 201112549 地部34連接。各同軸纜線11的中心導體12係銲接於各信 號線部3 2的後端側。此外’信號線部3 2與中心導體1 2的 連接，亦可藉由導電性接著劑等而非焊劑來固定。 又’於連接面31上’經由同軸纜線η的外部導體14 安裝有接地條（ground bar) 38。同軸纜線1 1的外部導體 1 4係由接地條3 8及中間基板2 1挾持。 如第2(b)圖及第3(b)圖所示，於背面側的連接面 41上，以既定間距P形成有構成複數個帶狀配線圖案的信 號線部4 2。信號線部4 2係分別形成延伸至中間基板2 1的 前端部（連接方向的前端）附近，且其前端部係藉由通孔 37與連接面31的接點36導通。 又，於連接面41上形成有接地圖案43。接地圖案43 具有：在比信號線部42更靠後端側之處沿寬度方向延伸的 接地部44;以及從該接地部44朝信號線部42之間而延伸 至中間基板21的前端部之複數條帶狀保護接地部45。保護 接地部4 5亦朝向中間基板2 1的寬度方向以既定間距p配 置。信號線部4 2與保護接地部4 5，彼此隔著微小的間隙交 互地配置於寬度方向上。 連接至連接面41的同軸纜線1 1係以既定間距p沿中 間基板21的寬度方向配置，其外部導體14係配置成與接 地部4 4連接。各同軸纜線1 1的中心導體1 2係銲接於各信 號線部4 2的後端側。此外，信號線部4 2與中心導體1 2的 連接’亦可藉由導電性接著劑等而非焊劑來固定》 201112549 又，於連接面4 1上’經由同軸纜線u的外部導 安裝有接地條48。同軸續線11的外部導體14係由接 48及中間基板21挾持。 於連接面31之信號線部32的背面側，配置連接 的保護接地部45。又’於連接面41之信號線部42的 側’配置連接面31的保護接地部35。再者，在上述構 中間基板21中’連接至連接面31的同軸纜線π以及 至連接面41的同軸纜線1 1，係沿中間基板2丨的寬度 以一次挪移半間距（P/ 2 )的方式交互配置。 如第4圖（a)、（b)所示’連接至連接面41的同 線1 1，係比連接至連接面3 1的同軸纜線丨丨配置於更 中間基板21的前端側。藉此，中心導體1 2連接於連 4 1之信號線部4 2的連接位置B相對於中心導體1 2連 連接面3 1之信號線部3 2的連接位置a，係較靠近中 板2 1的前方側僅相當於中間基板21之板厚τ的尺寸 距離。因此，連接位置A至接點32a之通電路徑的距 與連接位置B至接點36之通電路徑的距離爲相同距圈 上述中間基板21係藉由從其前端側插入設於電 器等之電路基板之連接器的插座而連接。依此方式， 基板21的接點32a、36與插座側的端子導通接觸， 設有插座之電路基板側的配線導通❶ 另外’亦可作成在該中間基板21的前端部安裝有 器’且與設置於電子機器等之電路基板側的連接器連 體14 地條 面41 背面 成的 連接 方向 軸纜 靠近 接面 接於 間基 X的 離、 I ° 子機 中間 並與 連接 接之 -10- 201112549 構成。又，朝電路基板連接的方向，亦可爲與電路基板的 面正交之方向或沿著電路基板的面之方向的其中一方向。 又’同軸纜線線束10可作成中間基板21上之同軸纜 線1 1的連接位置的配列是沿著同軸纜線1 1之長度方向的L 型構造’亦可作成中間基板2 1上之同軸纜線1 1的連接位 置的配列是與同軸纜線11的長度方向正交的T型構造。 根據本實施形態的同軸纜線線束1 〇，中間基板2 1的表 面及背面係形成爲複數條同軸纜線11可連接的連接面 31、41。連接器部的各線間距爲，信號線部32之接點32a 與鄰接於接點32a之接點36 (背面的信號線部42的接點） 的間距P/ 2，可將同軸纜線1 1的外徑設成比該間距更粗。 又，由於在配列於中間基板21之表背面的連接面3 1、4 1 且可供中心導體12連接的複數個信號線部32、42之間， 配置有保護接地部35、45，而該保護接地部35、45係由可 供外部導體14連接的接地部3 4、44延伸，故可抑制在相 互鄰接的信號線部3 2、42彼此間所產生之串擾等的電性干 擾。 又，經由接地部34、44與同軸纜線1 1的外部導體1 4 連接的保護接地部35、45，可兼備作爲與同軸纜線11的外 部導體14連接之反饋路徑用配線的功能。 此外，由於各連接面31、41之信號線部32、42的配 置係於表背面挪移間距P的半間距份量’且在各連接面 3 1、4 1之信號線部3 2、4 2的背面側，配置有相反面側之連 -11 - 201112549 接面4 1、3 1的保護接地部45、3 5，所以亦可抑制在表背面 之信號線部32、42彼此間所產生之串擾等的電性干擾。再 者’可在不用變更接點32a、36之間距的情況下，將連接 面31、41之同軸纜線η的配列間距放大成約接點32a、36 的2倍。藉此構成，可使用直徑較大的中心導體12作爲同 軸纜線11。亦即，可達成高密度安裝化，且可使用直徑較 粗者作爲同軸纜線1 1的中心導體1 2，可大幅改善傳送特性 或雜訊特性等的電氣特性。 又’在一邊的連接面31配列有可與連接器的端子導通 的複數個接點32a、36’一邊連接面31之信號線部32的一 部分係作成接點3 2a，另一邊連接面4 1的信號線部42係經 由貫通孔37與接點36導通，所以，可從中間基板21之一 邊連接面31側進行配線，可達成與連接器之連接構造的簡 單化。更且’由於中心導體12連接於信號線部32、42的 連接位置A、B與接點32a ' 36的通電路徑距離，在各連接 面3 1、4 1上是相同距離’所以可防止連接於表背面之連接 面3 1、4 1的同軸纜線丨丨彼此間發生信号的延遲時間。 如上所述’根據同軸纜線線束1〇，可確保良好的電氣 特性，且可實現高密度安裝。 另外’爲了使各同軸纜線丨丨整列而固定，以設置接地 條38、48爲佳，然而.，倘若同軸纜線n在沒有接地條38、 48的情況下也可良好地固定，則不設置接地條38、48亦可。 雖參照特定的實施態樣，詳細說明本發明惟該當技 -12- 201112549 術領域的業者在不悖離本發明之精神與範圍的情況下，顯 然可作各種變更或修正。本申請案係基於2〇 〇·9年7月21 曰申請的日本專利申請（特願2〇〇9 一 169931)，將其內容引 用於此作爲參考。 【圖式簡單說明】 第1圖係使用於本發明之同軸纜線線束之同軸纜線的 剖面圖。 第2圖係表示本發明之同軸纜線線束之一端側的立體 圖’第2 ( a )圖爲中間基板的表面側，第2 ( b )圖爲中間 基板的背面側。 第3圖係表示本發明之同軸纜線線束的一端側之俯視 圖’第3 ( a )圖係中間基板的表面側，第3 ( b )圖係中間 基板的背面側。 第4圖係表示本發明之同軸纜線線束之一端側的剖面 圖’第4(a)圖係第3(a)圖的A— A剖面圖，第4(b) 圖係第3(a)圖的b_B剖面圖。 【主要元件符號說明】 10 同 軸 纜 線 線束 11 同 軸 纜 線 12 中 心 導 體 12a' 14a 素 線 13 内 部 絶 緣 體 14 外 部 導 體 5· -13- 201112549 31 ' 4 1 連 接 面 32 ' 42 信 號 線 部 32a 、36 接 點 33 ' 43 接 地 圖 案 34、 44 接 地 部 35 ' 45 保 護 接 地部 37 貫 通 孔 38 ' 48 接 地 條 A、 B 連 接 位 置 P 間 距 5 -14-201112549 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a coaxial cable harness in which a plurality of coaxial cables are connected to an intermediate substrate. [Prior Art] In recent years, in addition to miniaturization and weight reduction, electronic devices are expected to achieve high speed and high image quality. Therefore, a very thin coaxial cable is used for connection between the main body of the machine and the display unit or wiring in the machine. Further, from the viewpoint of easiness of wiring, there is a coaxial cable harness in which a plurality of coaxial cables are integrated. The end portion of the coaxial cable is soldered to a connector terminal, a substrate, or the like, and is connected and fixed by bonding, welding, or the like using a conductive adhesive, as a form of connection and fixing to the substrate, which is conventionally known as a core wire. Or the circuit pattern connected to the sealing portion is alternately arranged on the connecting substrate formed on the opposite surface of the front and back surfaces, and the unit cable is connected to the surface side, the back side, the front side, and the back side of the substrate, for example, from the end portion thereof. The order of the connections is interactively arranged (for example, refer to Patent Document 1). [Provisional Technical Documents] [Patent Document 1] [Patent Document 1] Japanese Patent Laid-Open Publication No. 2005-25971 [Draft of the Invention] [Problems to be Solved by the Invention] According to the above technique, it is possible to set the pitch of each line of the connection portion to The high-density mounting is smaller than the diameter of each line. However, when the interval between the signal lines of the coaxial cable 201112549 lines is narrowed, electrical interference such as crosstalk is likely to occur between adjacent signal lines. Thus, the object of the present invention is to provide a coaxial cable harness which uses a wire having a diameter which is thicker than the pitch of the connecting portions, and which ensures good electrical characteristics. [Means for Solving the Problem] The coaxial cable harness of the present invention which solves the above-described problems includes a plurality of coaxial cables and an intermediate substrate having a center conductor and internal insulation disposed on an outer circumference of the center conductor And an outer conductor disposed on an outer circumference of the inner insulating body and an outer layer disposed on an outer circumference of the outer conductor, wherein the intermediate substrate is connected to at least one end side of the coaxial cable, and the coaxial cable harness is characterized by The plurality of coaxial cables are connected to the front surface and the back surface of the intermediate substrate; and the front surface and the back surface of the intermediate substrate have a plurality of signal line portions arranged at a predetermined pitch and connected to the center conductor, and a ground connected to the external conductor And a protective ground portion extending from the ground portion to the signal line portion; the arrangement position of the signal line portion is shifted by a half pitch amount on a front surface of the intermediate substrate, and the signal line portion of each connection surface The opposite surface side is provided with the aforementioned protective ground portion; on the surface of the intermediate substrate, the aforementioned signal The line portion is arranged at one end portion of the intermediate substrate at the predetermined pitch, and a plurality of contacts that are electrically connected to the terminals of the connector are arranged between the signal line portions 201112549, and the signal line portion on the back surface of the intermediate substrate is via The through hole is electrically connected to the aforementioned contact. In the coaxial cable harness of the present invention, preferably, in the signal line portion on the back surface of the intermediate substrate, the connection position of the center conductor is greater than the length of the through hole, and the center conductor of the intermediate substrate surface is The connection position is biased against the through hole. [Effect of the Invention] According to the present invention, a plurality of coaxial cables can be connected to the front and back surfaces of the intermediate substrate, respectively. Since the protective ground portion is disposed between the signal line portions on the front and back surfaces of the intermediate substrate, electrical interference such as crosstalk generated between adjacent signal line portions can be suppressed. In addition, the center conductor of the coaxial cable can be made thicker depending on the degree of protection of the ground. Namely, it is possible to provide a coaxial cable harness which uses a wire having a diameter larger than that of the connector portion and which ensures good electrical characteristics. [Embodiment] Hereinafter, an embodiment of a coaxial cable harness of the present invention will be described. The coaxial cable harness of the present invention may be connected to the intermediate substrate at both end sides or may be connected to the intermediate substrate only at one end side and the connector at the other end side. The configuration to the intermediate substrate will be described. As shown in Fig. 1, the coaxial cable 11 constituting the coaxial cable harness has a center conductor 1 2. The inner insulator 13 and 201112549 disposed on the outer circumference of the center conductor 1 2 are disposed on the outer periphery of the inner insulator 13. The outer conductor 14 and the insulating outer layer 15 disposed on the outer circumference of the outer conductor 14 are disposed coaxially with each other. The coaxial cable 11 uses, for example, a cable that is thinner than the AWG 32 according to the specifications of the AWG (American Wire Gauge). For example, in the coaxial cable 11 of the AWG 42 which is thinner than the AWG 32, the center conductor 12 is formed by twisting seven primed wires 12a of a tin-plated copper alloy or a silver-plated copper alloy having an outer diameter of 〇.〇25 mm. Further, the internal insulator 13 is made of a fluororesin such as PFA or the like which covers the outer peripheral surface of the center conductor 12, and is formed to have an outer diameter of 0.17 mm. Further, the outer conductor 14 is wound on the outer circumferential surface of the inner insulator 13 by winding or winding a plain wire 14 4a having an outer diameter of 0.03 mm, for example, a tin-copper alloy, to form 0.2 3 mm. The outer diameter. Further, the overcoat layer 15 is made of a fluororesin such as PFA or the like covering the outer peripheral surface of the outer conductor 14 , and is formed to have an outer diameter of 0.31 mm in the case of AWG 40 and as an AWG 32 in the case of AWG 32. An outer diameter of approximately 1.0 mm. As shown in Figs. 2 and 3, the end portion of the coaxial cable 11 constituting the coaxial cable harness 10 is subjected to an exposure opening process, and the center conductor 12, the internal insulator 13 and the external conductor 14 are respectively staged. The predetermined length is exposed from the front end side of the coaxial cable 1 1 in order. Further, a plurality of coaxial cables 11 processed through such exposed openings are connected to the intermediate substrate 21. The ends of the coaxial cable 1 1 are arranged in a planar arrangement so as to be easily connected to the intermediate substrate 21, and the portions other than the end portions of the coaxial cable 1 1 can be bundled. Ϊ-. 201112549 The surface and the back surface of the intermediate substrate 2 1 are respectively formed as connection faces 3 1 and 4 1 , and a plurality of coaxial cable turns are respectively connected to the connection faces 3 1 and 4 1 . The intermediate substrate 21 is made of, for example, a flexible substrate or a rigid substrate having a wiring pattern such as a metal foil. As shown in Fig. 2(a) and Fig. 3(a), the signal line portion 32 constituting the plurality of strip-shaped wiring patterns is formed at a predetermined parallel pitch P on the surface side connection surface 31. The signal line portion 32 is formed to extend to the front end portion (the front end of the connection direction) of the intermediate substrate 21, and the front end portion thereof is formed as the contact 32a. Further, the arrangement pitch P of the signal line portion 32 is preferably, for example, 〇3 mm or more and 1.0 mm or less. Further, a ground pattern 33 is formed on the connection surface 31. The ground pattern 3 3 has a ground portion 34 extending in the width direction from the rear end side of the signal line portion 32, and a signal line portion 3 2 extending from the ground portion 34 toward the front end portion of the intermediate substrate 2 1 A plurality of strip guard ground portions 35 are interposed. The protective ground portion 35 is also disposed at a predetermined pitch P in the width direction of the intermediate substrate 21. The signal line portion 3 2 and the protective ground portion 3 5 ' are alternately arranged in the width direction with a slight gap therebetween. Further, on the connection surface 31, a contact 36 is provided between the front end side of each of the protective ground portions 35 and the protective land portion 35. The contact 36 is electrically connected to the signal line portion 42 formed on the connection surface 41 of the back side by the through hole 37. These contacts 36 are also arranged along the width direction of the intermediate substrate 21 at a predetermined pitch P. The coaxial cable 11 connected to the connection surface 31 is disposed at a predetermined pitch P in the width direction of the intermediate substrate 21, and the outer conductor 14 is disposed to be connected to the ground portion 34 of the 201112549. The center conductor 12 of each of the coaxial cables 11 is soldered to the rear end side of each of the signal line portions 32. Further, the connection between the signal line portion 3 2 and the center conductor 12 may be fixed by a conductive adhesive or the like instead of a flux. Further, a ground bar 38 is attached to the outer conductor 14 of the coaxial cable η on the connecting surface 31. The outer conductor 14 of the coaxial cable 1 1 is held by the ground strip 38 and the intermediate substrate 2 1 . As shown in Figs. 2(b) and 3(b), a signal line portion 4 2 constituting a plurality of strip-shaped wiring patterns is formed on the connecting surface 41 on the back side at a predetermined pitch P. The signal line portion 4 2 is formed to extend to the vicinity of the front end portion (the front end in the connection direction) of the intermediate substrate 21, and the front end portion thereof is electrically connected to the contact 36 of the connection surface 31 via the through hole 37. Further, a ground pattern 43 is formed on the connection surface 41. The ground pattern 43 has a ground portion 44 extending in the width direction from the signal line portion 42 at the rear end side, and a front end portion extending from the ground portion 44 toward the signal line portion 42 to the intermediate substrate 21. A plurality of strip-shaped protective ground portions 45. The protective land portion 45 is also disposed at a predetermined pitch p toward the width direction of the intermediate substrate 2 1 . The signal line portion 4 2 and the protective ground portion 45 are arranged in the width direction with a slight gap therebetween. The coaxial cable 11 connected to the connection surface 41 is disposed at a predetermined pitch p in the width direction of the intermediate substrate 21, and the outer conductor 14 is disposed to be connected to the ground portion 44. The center conductor 12 of each of the coaxial cables 1 1 is welded to the rear end side of each of the signal line portions 42. Further, the connection ' between the signal line portion 42 and the center conductor 12' may be fixed by a conductive adhesive or the like instead of the flux. 201112549 Further, on the connection surface 41, 'the external guide via the coaxial cable u is mounted. Ground strip 48. The outer conductor 14 of the coaxial line 11 is held by the joint 48 and the intermediate substrate 21. The connected protective ground portion 45 is disposed on the back side of the signal line portion 32 of the connection surface 31. Further, the protective ground portion 35 of the connection surface 31 is disposed on the side of the signal line portion 42 of the connection surface 41. Further, in the above-described intermediate substrate 21, the coaxial cable π connected to the connection surface 31 and the coaxial cable 1-1 to the connection surface 41 are shifted by a half pitch (P/2) along the width of the intermediate substrate 2A. ) interactive configuration. As shown in Fig. 4 (a) and (b), the coaxial line 1-1 connected to the joint surface 41 is disposed on the front end side of the intermediate substrate 21 than the coaxial cable 连接 connected to the joint surface 31. Thereby, the connection position B of the center conductor 12 connected to the signal line portion 42 of the connection 41 to the signal line portion 32 of the connection surface 31 of the center conductor 12 is closer to the middle plate 2 The front side of 1 corresponds to only the dimensional distance of the plate thickness τ of the intermediate substrate 21. Therefore, the distance between the connection path A and the contact path of the contact point 32a is the same as the distance from the connection position B to the contact path of the contact 36. The intermediate substrate 21 is inserted into the circuit board provided on the electric appliance or the like from the front end side thereof. The connectors are connected by sockets. In this manner, the contacts 32a and 36 of the substrate 21 are in conductive contact with the terminals on the socket side, and the wiring on the circuit board side of the socket is provided. Alternatively, the device can be mounted on the front end portion of the intermediate substrate 21 and Connector connector 14 provided on the circuit board side of an electronic device or the like. The connection direction of the ground surface of the ground strip 41 is close to the junction and is connected to the middle of the sub-base X, and is connected to the connection. -10- 201112549 Composition. Further, the direction in which the circuit board is connected may be one of a direction orthogonal to the surface of the circuit board or a direction along the surface of the circuit board. Further, the 'coaxial cable harness 10 can be formed such that the connection position of the coaxial cable 11 on the intermediate substrate 21 is an L-shaped structure along the length direction of the coaxial cable 1 1 ' can also be made coaxial on the intermediate substrate 2 1 The arrangement of the connection positions of the cables 11 is a T-shaped structure orthogonal to the longitudinal direction of the coaxial cable 11. According to the coaxial cable harness 1 of the present embodiment, the front and back surfaces of the intermediate substrate 2 1 are formed as connection faces 31 and 41 to which a plurality of coaxial cables 11 can be connected. The line spacing of the connector portion is such that the pitch P/ 2 of the contact 32a of the signal line portion 32 and the contact 36 (the contact of the signal line portion 42 on the back side) adjacent to the contact 32a can connect the coaxial cable 1 1 The outer diameter is set to be thicker than the pitch. Further, the protective ground portions 35 and 45 are disposed between the plurality of signal line portions 32 and 42 which are disposed on the front and back surfaces 3 1 and 4 1 of the intermediate substrate 21 and which are connectable to the center conductor 12, and The protective ground portions 35 and 45 are extended by the ground portions 34 and 44 to which the external conductors 14 are connected. Therefore, it is possible to suppress electrical interference such as crosstalk generated between the mutually adjacent signal line portions 3 and 42. Further, the protective ground portions 35 and 45 connected to the outer conductor 14 of the coaxial cable 1 via the ground portions 34 and 44 have a function as a feedback path wiring connected to the outer conductor 14 of the coaxial cable 11. Further, since the arrangement of the signal line portions 32, 42 of the respective connection faces 31, 41 is shifted by the half-pitch portion ' of the pitch P on the front and back sides of the front and the signal line portions 3 2, 4 2 of the respective connection faces 31, 41 On the back side, the protective grounding portions 45 and 35 of the junctions -11 - 201112549 of the opposite side are disposed, so that the crosstalk generated between the signal line portions 32 and 42 on the back side of the front surface can be suppressed. Electrical interference. Further, the arrangement pitch of the coaxial cables η of the connection faces 31, 41 can be enlarged to about twice the contact points 32a, 36 without changing the distance between the contacts 32a, 36. With this configuration, the center conductor 12 having a large diameter can be used as the coaxial cable 11. That is, high-density mounting can be achieved, and a relatively large diameter can be used as the center conductor 12 of the coaxial cable 1 1 to greatly improve electrical characteristics such as transmission characteristics or noise characteristics. Further, a plurality of contacts 32a and 36' which are electrically connected to the terminals of the connector are arranged on the connection surface 31 of one side, and a part of the signal line portion 32 of the connection surface 31 is formed as a contact point 3 2a, and the other side connection surface 4 1 Since the signal line portion 42 is electrically connected to the contact 36 via the through hole 37, wiring can be performed from one side of the intermediate substrate 21 to the side of the connection surface 31, and the connection structure with the connector can be simplified. Further, 'the distance between the connection positions A and B of the center conductor 12 connected to the signal line portions 32 and 42 and the contact path 32a' 36 is the same distance on each of the connection faces 31 and 41, so that the connection can be prevented. The delay time of the signal occurs between the coaxial cables 连接 of the connection faces 3 1 and 4 1 on the back side of the watch. As described above, according to the coaxial cable harness 1 , good electrical characteristics can be ensured, and high-density mounting can be realized. In addition, in order to fix the coaxial cables in a row, it is preferable to provide the grounding strips 38, 48. However, if the coaxial cable n is well fixed without the grounding strips 38, 48, then Ground bars 38, 48 may also be provided. It will be apparent to those skilled in the art that the present invention may be variously modified or modified without departing from the spirit and scope of the invention. The present application is based on Japanese Patent Application No. Hei. No. Hei. No. Hei. No. Hei. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing a coaxial cable used in the coaxial cable harness of the present invention. Fig. 2 is a perspective view showing one end side of the coaxial cable harness of the present invention. Fig. 2(a) shows the surface side of the intermediate substrate, and Fig. 2(b) shows the back side of the intermediate substrate. Fig. 3 is a plan view showing one end side of the coaxial cable harness of the present invention. Fig. 3(a) shows the surface side of the intermediate substrate, and Fig. 3(b) shows the back side of the intermediate substrate. Figure 4 is a cross-sectional view showing one end side of a coaxial cable harness of the present invention. Fig. 4(a) is a cross-sectional view taken along line A-A of Fig. 3(a), and Fig. 4(b) is a third (a) ) The b_B profile of the figure. [Main component symbol description] 10 Coaxial cable harness 11 Coaxial cable 12 Center conductor 12a' 14a Prime wire 13 Internal insulator 14 External conductor 5· -13- 201112549 31 ' 4 1 Connecting surface 32 ' 42 Signal line portion 32a, 36 Contact 33 ' 43 Ground pattern 34, 44 Grounding part 35 ' 45 Protective earthing section 37 Through-hole 38 ' 48 Grounding strip A, B Connection position P Spacing 5 -14-