SIGNAL TRANSMISSION DEVICE AND CABLE TRANSMISSION DEVICE

• Main Authors: YUKI FUMIO, NISHIMURA KEI
• Format: Patent
• Language: English; Japanese
• Published: 21.06.2018
• Subjects: BASIC ELECTRIC ELEMENTS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CURRENT COLLECTORS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; LINE CONNECTORS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; PRINTED CIRCUITS

PROBLEM TO BE SOLVED: To improve the jitter performance of a signal transmission device.SOLUTION: A signal transmission device is arranged to transmit signals of 10 Gbps or more per one route. The signal transmission device comprises: a GND layer formed on a substrate; a dielectric layer formed on the GND layer; a first node formed on the dielectric layer and soldered to a first transmission line outside the device; a second node formed on the dielectric layer, and removably connected to a second transmission line outside the device; and a third transmission line formed on the dielectric layer and serving to transmit the signal between the first and second nodes. The impedance of the third transmission line in signal transmission is set within a range of ±10% of an impedance of one of the first and second nodes.SELECTED DRAWING: Figure 6 【課題】信号伝送装置のジッタ特性を向上させる。【解決手段】１経路あたり１０Ｇｂｐｓ以上の信号を伝送する信号伝送装置であって、基板上に形成されたＧＮＤ層と、ＧＮＤ層の上に形成された誘電体層と、誘電体層の上に形成されて、装置外部の第１の伝送線路と半田接続される第１の接続点と、誘電体層の上に形成されて、装置外部の第２の伝送線路と着脱可能に接続される第２の接続点と、誘電体層の上に形成されて、第１の接続点と第２の接続点の間で前記信号の伝送を行う第３の伝送線路と、を備える。そして、信号の伝送時における第３の伝送線路のインピーダンスが、第１の接続点および第２の接続点のいずれか一つのインピーダンスのプラスマイナス１０％の範囲に設定されている。【選択図】 図６