Low Loss RG 402 Equivalent

Transcription

1 Low Loss RG 402 Equivalent Section 10 Low Loss RG 402 Equivalent In applications that require the bendability of solid dielectric, but with the low loss that only a low density Teflon dielectric offers even at high temperatures, Storm Products' new can withstand the heat. This cable exhibits loss that is 30% lower than the MIL-C-17 / 130 limit at 18GHz and 25 C. This RG402 equivalent performs when bent around a mandrel diameter as small as.25 inches, even up to 200 C. Use in almost any application where loss is critical, but where space is at a premium. In addition to superior attenuation response, has many other advantages including: EXCELLENT THERMAL STABILITY Temperatures that at best would extrude solid PTFE dielectric, degenerating connector electrical performance, and at worst rupture RG402 tubing, have appreciably no effect on Even when high temperature solder is required for a high reliability application, the dielectic will not shift, ensuring that there will be no failures due to extrusion, such as an air gap filled with dielectric, or a cracked solder joint. IMPROVED VSWR OVER TEMPERATURE RESPONSE The cable dielectric will not shift when exposed to temperatures as high as 475 F. This results in very low VSWR variations over operating temperatures, usually under 2%. IMPROVED PHASE STABILITY Cable Relative Delay Phase Shift in PPM C to -40 C 25 C to 100 C , RG402 RG402 3,550 1, BENDABILITY 475 F for 60 seconds passes the bendability requirement for MIL-C-17/130C. This cable can be used in assemblies requiring centerline bend radii as small as.32 inches, with VSWR as low as 1.25:1, depending upon degree and number of bends. Bendability combined with excellent phase and thermal stability make an ideal candidate for use in delay line applications. FITS ALL RG402 CONNECTORS Unlike some specialty cable products, complies with MIL-C-17/130 specifications 1, therefore along with being made from the most reliable materials, it will also accept standard connector products designed for RG402, including crimp-on designs Diameter Mandrel RG402 FOR APPLICATIONS WHERE PHASE STABILITY IS CRITICAL, REFER TO THE "MICROPOROUS PTFE COAX" SECTION OF THIS CATALOG. NOT RECOMMENDED FOR CONNECTORS USING CABLE CENTER CONDUCTORS AS CENTER PIN low density PTFE dielectric complies with MIL-C-17 type F-5 dielectric specifications.

2 TECHNICAL DATA Electrical Attenuation Data : ATTENUATION DATA MEASURED AT 25 C AND AT SEA LEVEL db/ 100 foot MIL-C-17/130 Limit was designed to easily satisfy all environmental and mechanical specifications from MIL-C-17/130. So, any system which uses RG402 can benefit from the electrical advantages, and be assured of a mechanical match. Impedance (ohms) 50 ± 2 Velocity (percent) 74% Frequency Range 26.5 GHz Capacitance 27.4 pf/ft Delay 1.37 ns/ft Max. Operating Voltage 1900 VRMS Temperature Range -50 C to +250 C Power Rating complies with MIL-C-17/130C limit Frequency (GHz) All figures are nominal unless otherwise stated Mechanical Outer Diameter.141 ±.002 Center Conductor Diameter.036 ±.0005 Weight 2.8 lbs/100ft Min. Centerline Bend Radius 0.32 inches Section 10 Low Loss RG 402 Equivalent Section 10

3 Cable Assembly Insertion Loss :.125" (3.18MM) DIAMETER CABLE. EASY TO ROUTE, LIGHTER WEIGHT, VERY DURABLE. db :.210" (5.33MM) DIAMETER CABLE. INSERTION LOSS IS FAR SUPERIOR TO RG 402/U. db db Typical Insertion Loss for Cable Assemblies Frequency (GHz) For performance up to 50Ghz consult factory. Typical Insertion Loss for Cable Assemblies Frequency (GHz) 10ft 9ft 8ft 7ft 6ft 5ft 4ft 3ft 2ft 1ft 10ft 9ft 8ft 7ft 6ft 5ft 4ft 3ft 2ft 1ft Section 1 '90 Series' Flexible Cables

4 ELECTRICAL PROPERTIES All figures are nominal unless otherwise stated. MECHANICAL PROPERTIES All figures are nominal unless otherwise stated. Cable Properties Part Number (421-XXX) * Impedance (Ohms) 50 ± 2 50 ± 2 50 ± 2 50 ± 2 50 ± 2 50 ± 2 50 ± 2 Capacitance (pf/ft) Velocity 78% 78% 81% 73% 80% 84% 84% Cut-off freq. (GHz) Delay Consult factory before using this data for delay lines Dielectric withstand -VRMS Attenuation Power handling ** To calculate assembly insertion loss, see page 10. See charts next page** See charts next page RG 402 EQUIVALENT - CABLE PART NUMBER , INFORMATION CAN BE FOUND ON PAGE 62. Part Number (421-XXX) Cable diameter (in) Center conductor dia. (in) Min. center line bend (in) Weight ( lbs/100ft) Max. temperature rating ( C) Outer conductor material Cu Cu Cu Cu Cu Al Al NOTE - The minimum bend radius specified is a limit for mechanical consideration, i.e. the cable may physically break at this limit. Electrical changes as a result of bending may occur at somewhat larger radii and are a function of the number of bends in a cable and their location. Please consult your Storm Sales Engineer for further information. Section 9 High Performance Semi-Rigid Cable Section 9

5 Section 9 High Performance Semi-Rigid Cable Attenuation Data ATTENUATION FOR CABLES , RG 405, AND db/100 foot Frequency GHz ATTENUATION FOR CABLES , AND RG402 db/100 foot RG Frequency GHz

6 Straight Cable Plug SMA Connectors Cable P/N A Dia. B Dia. Connector Cable Number Connector P P P P RG 401 RG P Straight Cable Jack Cable Number Connector J Straight Cable Plug Straight Cable Jack Cable P/N A Dia. B Dia. Connector J PLEASE CONSULT FACTORY FOR DIMENSIONS AND WEIGHTS Section 9 High Performance Semi-Rigid Cable Section 9

7 Section 12 Custom Applications and Solutions Delay Line Cable Alternatives Precision Delay Lines feature minimal delay changes over temperature, low insertion loss, and a wide operating temperature range. These low density dielectric semi-rigid cables can be packaged in a wide variety of configurations (consult the factory for special designs). Additionally, microporous dielectric cables may be bent around a tighter minimum bend radius than both TFE Spline or Boron doped TFE dielectric cables, and are much less expensive than SiO2 cable. Microporous dielectric cable is an excellent choice for delay standards GHz Outer Attenuation Phase Min. Bend Length Weight Dielectric Cable Diameter (db) db/ns Stability Radius (lbs) Best LW Best Best LW Best Best * LW Best Best Solid Microporous RG Note"A" RG Note"A" RG Note"A" * See page 62 The minimum centerline bend radius is recommended for maintaining a VSWR of approximately 1.25:1. Smaller radii are possible, but not without the risk of degrading VSWR. "A" At higher temperatures, 21 to 120 degrees C, microporous PTFE dielectric cable has slightly better phase response than solid PTFE dielectric cable. However, from 21 C to -50 C microporous cable displays far superior phase response. Coaxial Connector Frequency Usage Chart Frequency 1 in GHz V U H H L S C X KU K KA F F Connector Style =Operational Range Applicable MIL Specification Listed for reference only UHF * L SC MIL-C-39012/35/43 C MIL-C-39012/6/15 HN MIL-C-3643 N MIL-C-39012/1/5 Precision N MIL-C-39012/129/132 BNC MIL-C-39012/16/24 TNC MIL-C-39012/26/34 Precision TNC MIL-C-39012/112/116 SMB MIL-C-39012/67/72 SMC MIL-C-39012/73/78 SMA MIL-C-39012/79/83 SSMA * 3.5 mm * 7 mm IEEE 287 GMS * GPO * K-Style * 2.4 mm * * No MIL Designation