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GORE Microwave/RF Assemblies General Purpose Test Applications Table 8: Ordering Information 0.145 diameter 0.195 diameter Maximum flexibility, excellent electrical stability Minimum Minimum Gore Part Typical Gore Part Typical For test applications that require consistent and highly repeatable Number Insertion Number Insertion measurements, GORE Microwave/RF Assemblies for general purpose Length (in) Loss (dB) Loss (dB) test applications provide reliable electrical performance with proven 6 145-006.0 0.41 195-006.0 0.33 phase and amplitude stability. The smaller diameter and highly flexible, yet durable construction simplify the routing process while 12 145-012.0 0.66 195-012.0 0.49 ensuring long-lasting electrical performance after installation, particularly in board-to-board and inside-the-box systems. GORE 18 145-018.0 0.91 195-018.0 0.65 Microwave/RF Assemblies provide electrical and mechanical integrity 24 145-024.0 1.16 195-024.0 0.81 for long service life in a lightweight cable assembly. 36 145-036.0 1.67 195-036.0 1.13 48 145-048.0 2.17 195-048.0 1.45 Greater Flexibility GORE Microwave/RF Assemblies are extremely flexible and 60 145-060.0 2.68 195-060.0 1.78 withstand the rigors of handling and installation. Unlike traditionally 72 145-072.0 3.18 195-072.0 2.10 designed flexible cables that are more stiff and difficult to handle, 96 145-096.0 4.18 195-096.0 2.74 Gores assemblies have a small bend radius that makes routing easy even in tight spaces. Their smaller size and flexibility enable these 120 145-120.0 5.20 195-120.0 3.39 cables to maintain signal integrity for a longer service life. Precise and Repeatable Measurements GORE Microwave/RF Assemblies offer excellent electrical performance in applications from DC through 67 GHz. The assemblies proven Benefits of GORE Microwave/RF phase and amplitude stability ensures accurate and repeatable Assemblies measurements. Gore tests each assembly after manufacturing to ensure that its insertion loss and VSWR meet performance criteria. Reliable signal integrity over longer distances with low loss up to 67 GHz The construction of GORE Microwave/RF Assemblies enables Reliable, repeatable electrical performance with consistent electrical performance (Figure 1). Gores expanded consistent phase and amplitude stability polytetrafluoroethylene (ePTFE) insulation has a dielectric constant Easy installation with flexible construction and small of 1.4, which translates to low relative loss, high velocity of bend radius propagation (85 percent speed of light), low capacitive loading, and high cut-off frequencies. Protected by the inner braid and Decreased weight with smaller diameter for higher density applications jacket, the outer conductor delivers a minimum of 100 dB/ft of shielding effectiveness through 18 GHz. A specific assemblys Design flexibility with a variety of interconnect options shielding effectiveness is determined by the choice of connector. Gore provides a Figure 1: The Anatomy of GORE variety of standard Microwave/RF Assemblies for Typical Applications connectors designed General Purpose Applications Optical modules Board-to-board systems specifically for Inside-the-box systems Evaluation boards GORE Microwave/ Antenna arrays Wafer probing RF Assemblies. ATE systems (automated Test bench systems These connectors test equipment) Module-to-module are engineered to Load boards interconnect complement the Backplane interconnects Environmental test chambers performance of each Thermal vacuum chambers Clock distribution cable, minimizing Telecommunication systems loss and reflection for optimized signal transmission.GOREMicrowave/RF Assemblies Phase Matching High-Density Interconnects Upon request, phase or time delay matching can be specified for Gore offers several extremely small interconnects that deliver GORE Microwave/RF Assemblies with frequencies of DC through consistent electrical performance with maximum flexibility 67 GHz. According to the performance requirements of the (Table 1). These assemblies enable you to achieve high density application, cable assemblies can be specified to meet absolute for applications such as printed circuit boards and load boards. or relative matching values: The combination of low loss, small diameter and minimum bend radius facilitate easier routing and durable installation, Absolute match: One or more assemblies having a specific time making them an ideal replacement for semi-rigid assemblies delay or phase length target value some tolerance value. This (Figure 2). A variety of push-on connectors are available (Table 2). type of specification allows replacement or addition of individual For cable/connector combinations specifically designed for cables in a matched set. load board applications, contact a Gore representative at Relative match: Two or more assemblies whose time delay or electronics.usa wlgore.com. phase length fall within a specified match window. Relative matching ensures consistent matching within a set of cables, but an assembly from one set may not necessarily be matched with cable assemblies in another set. Gore can provide absolute and relative time delay matching to sub-picosecond tolerances. 1 Table 1: High-Density Interconnect Specifications Gore Cable Type 4L 53 G1 G4 54 89 55 Maximum Frequency 18 18 18 18 40 40 67 Typical VSWR 1.33:1 1.32:1 1.30:1 1.30:1 1.33:1 1.40:1 1.40:1 Typical Insertion Loss (dB) 1.58 1.26 0.77 0.75 1.93 1.60 2.58 Impedance (Nominal) (Ohms) 50 5.04 3.69 2.33 2.08 5.45 5.35 7.02 Attenuation at Maximum Frequency dB/m (dB/ft) (1.54) (1.13) (0.71) (0.63) (1.66) (1.63) (2.14) Dielectric Constant (Nominal) 1.4 Velocity of Propagation (Nominal) (%) 85 Shielding Effectiveness (dB through 18GHz) > 100 Time Delay (Nominal) ns/cm (ns/in) 0.04 (0.103) Center Conductor Solid Solid Stranded Solid Solid Solid Solid 1.2 1.8 3.0 3.0 1.8 2.2 1.8 Overall Diameter mm (in) (0.047) (0.070) (0.120) (0.120) (0.070) (0.085) (0.070) 5.6 11.5 29.5 29.5 11.5 13.1 11.5 Nominal Weight g/m (oz/ft) (1.7) (3.5) (9.0) (9.0) (3.5) (4.0) (3.5) 6.4 10.2 12.7 12.7 10.2 12.7 10.2 Minimum Bend Radius mm (in) (0.25) (0.4) (0.5) (0.5) (0.4) (0.5) (0.4) Temperature Range (C) -55 to 125 1 The electrical specifications in this table are based on a .03 m (12 in) assembly length and maximum frequency with straight connectors. 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