Technical Reference for RF Interconnects - MegaPhase

1 Technical Reference for RF Interconnects2098 West Main Street, Stroudsburg, PA 18360 Tel: 1-877- MegaPhase / 570-424-8400 Fax: 1-877-MegaFax / Care & HandlingConnector InterfacesInterface CleanlinessClean Interfaces prolong connector life and produce more accurate,repeatable measurements. The use of connector end-caps toprotect test cables and adapters when not in use is recommended. Interface Cleaning Procedure1. Solvents: Connector insulators, support beads, and seals are susceptible to solvent damage. Solvents can produce permanent physical and electrical damage. Isopropyl alcohol is recommended for cleaning interfaces. It should be noted that connector interfaces should not be immersed in solvents of any kind because solvents can become trapped within the connectorized assembly. Trapped fluids can cause SWR, Phase, and Insertion Loss Applicators: Fibrous or abrasive applicators can contaminate and even damage interface surfaces.

2 Clean lint free swabs should be used. They need to be sharp enough and hard enough to remove dirt and debris without damaging surfaces and/or dislodging center Method: Dip a clean lint free swab in clean isopropyl alcohol. Press excess alcohol out of swab on a clean lint free towel. Wipe the interface components as required to clean the interface. Blow-dry the interface with clean compressed air. Re-inspect the connector to verify that the interface is clean and ready for additional inspection procedures and interface gauging prior to GaugingIncorrect center pin depths can produce inaccurate measurementsand in the case of protruding center pins can damage test devices,adapters, and test ports. Frequent interface gauging can detectgauging problems before they ruin mating devices (see Table I).Recommended Coupling TorqueIncorrect coupling torque can produce inaccurate measurementsand over-torque coupling can damage test devices, adapters,and test ports.

3 Torque wrenches should be utilized to for allmate/de-mate processes (see Table II).Cable Routing Bend RadiusCare should be taken to avoid over-bending test cables beyondminimum bend radius guidelines. Over-bending can force cablecenter conductor off-center, and can force the outer conductor outof round even to the point of kinking and fracture. Over bendingresults in degraded IL and SWR performance. It should also benoted that coiling cables at small diameters could force connectorcenter-pins to protrude beyond required interface dimensions. TwistingTwisting test cables should be avoided at all times. Excessivetwist can damage cable assembly at the cable/connector junctionor even mid-cable depending on how the twist is applied. Lowerlevel twist can cause measurement problems as well. Inducedstresses on test ports and device ports can damage the ports. Cable Assembly Mate/De-Mate ProcessInterface AlignmentContact Pins and Dielectrics can be damaged if misalignedconnectors are mated.

4 Make sure that mating interfaces areparallel and on center during mate/de-mate cycle. Interface RotationPlating and surface finish of outer and inner contacts can bedamaged it connector bodies are allowed to rotate duringmate/de-mate cycle. Use wrench flats on connector bodies tokeep them rotationally stationary while rotating coupling nutduring the mate/de-mate process. Minimized Load ConfigurationAllow test cable to assume natural bend configuration routebetween test port and device port. Loosen test port connectionwhen test configuration is largely different than test the cable, connect device port loosely then tighten bothport connections to recommended coupling torque (see Table II).This method will minimize most bend and twist loading issues. 7 mmN MaleN mmSMATNC / BNCTNC / BNC7-16 Male7-16 / / + / + / / / / / / + / + + / + in. / STD 287 MIL-STD-348 MIL-STD-348 IEEE STD 287 IEEE STD 287 IEEE STD 287 IEEE STD 287 MIL-STD-348 MIL-STD-348 MIL-STD-348 IEC 169-4 IEC 169-4 Connector InterfaceSpecificationContact Location wrt Reference Plane (in.)

5 Table I: Connector Interface Pin Depths7 mm, mm, mm, K , mm, mmSMA, TNC1285 Interface TypeCoupling Torque ( )Table II: Recommended Coupling TorqueTechnical Reference for RF Interconnects (cont d)2098 West Main Street, Stroudsburg, PA 18360 Tel: 1-877- MegaPhase / 570-424-8400 Fax: 1-877-MegaFax / CorePolyethylene CoreOperating Temperature-103 to 392 F (-75 to 200 C)-103 to 176 F (-75 to 80 C)Core TypesNo JacketBraid OnlyPolyolefin JacketPolyolefin Jacket over BraidNeoprene JacketNeoprene Jacket over BraidFEP JacketFEP Jacket over BraidPolyethyleneNomex BraidNomex over Metallic BraidViton JacketViton Jacket over Metallic BraidTeflon Tape Wrap JacketPolyurethane JacketOther ArmorStandard strength, heat dissipationModest strength, heat dissipationSystem use, standard strengthTM Series standard, Test and System use, modest strengthOutdoor use, environmental protectionModest strength, environmental protectionSpace, low outgassingModest strength, low outgassingTower 7 Series standardAirborne or Plenum useModest strength, Airborne or Plenum useSpace, radiation protection, NBCM odest strength, radiation resistant, NBCHigh flexibilityExterior UV and high abrasion resistanceCrush resistant, extra strengthSee Core TypeSee Core Type-67 to 275 F (-55 to 135 C)-67 to 275 F (-55 to 135 C)

6 -94 to 250 F (-70 to 121 C)-94 to 250 F (-70 to 121 C)-103 to 392 F (-75 to 200 C)-103 to 392 F (-75 to 200 C)-103 to 176 F (-75 to 80 C)-103 to 392 F (-75 to 200 C)-103 to 392 F (-75 to 200 C)-40 to 392 F (-40 to 200 C)-40 to 392 F (-40 to 200 C)-103 to 392 F (-75 to 200 C)-103 to 257 F (-75 to 125 C)Dependant on Armor TypeCable Protection TypesSemi-Flexible Dual Wall Polyolefin (DWP)Semi-Rigid Dual Wall Polyolefin (SCL)PolyolefinVitonKynarMetalGeneral purpose, flexible adhesive for environmental sealGeneral purpose, rigid adhesiveGeneral purpose, flexible, no adhesiveSpace, radiation protection, no adhesiveSpace, no adhesiveIndoor use, no adhesive-67 to 230 F (-55 to 110 C)-67 to 230 F (-55 to 110 C)-67 to 275 F (-55 to 135 C)-40 to 392 F (-40 to 200 C)-67 to 347 F (-55 to 175 C)-103 to 392 F (-75 to 200 C)Marker and Strain Relief Loss (dB)SWR/Return Loss ConversionMegaPhase Materials Temperature Ratings VHFUHFLSCXKuKKaVFrequency (GHz)IEEE (USA)Frequency NumberPhase3TM C SeriesJumpShotTM B SeriesClearPathTM A SeriesSemi-rigid CableTowerFlex CableTowerFeed CableCable AttenuationFor attenuation at any frequency, use the following formula: (K1 x freq GHz) + (K2 x freq GHz) Technical Reference for RF Interconnects (cont d)2098 West Main Street, Stroudsburg, PA 18360 Tel: 1-877- MegaPhase / 570-424-8400 Fax.

7 1-877-MegaFax / Derating over TemperaturePower Derating over Temperature and Altitude-402080-2004012010014060160 Temperature ( C)IL Change (dB) (GHz)Average P (Watts CW)1000010001001020406080200400600800200 0400060008000-402080-2004012010014030160 Temperature ( C)PPM804-4-8 Sea Level-70,000 ft7-16 DINSCN CW Power HandlingNote:Data at ambient temperature and sea Reference for RF Interconnects (cont d)2098 West Main Street, Stroudsburg, PA 18360 Tel: 1-877- MegaPhase / 570-424-8400 Fax: 1-877-MegaFax / (APC-7)1N 50 ohmN 75 (K) 75 ohmFD7-16in/ UpperOperatingFreq. (GHz)12121288884955-3-415152014135135135 909090904595656-34-4516816822614 Coupling Torque 8 8 11 8 MetrologyGrade 11 InstrumentGrade 9 ProductionGradeRF Connector Interface Information7mm (APC-7)1N 50 ohmN 75 (K) 75 ohmFD7-16 IEEE STD 287 IEC STD 457-2 IEEE STD 287 MIL-STD-348 AIEC STD 169-16 IEC STD 169-16 IEEE STD 287 IEC STD 169-23 IEC STD 457-5 IEEE STD 287 IEEE STD 287 IEEE STD 287 IEEE STD 287 MIL-STD-348 AMIL-C-39012 IEC STD 169-15 MIL-STD-348 AMIL-C-39012 IEC STD 169-17 IEC STD 169-26 MIL-STD-348 AMIL-C-39012 IEC STD 169-8 MIL-STD-348 AMIL-C-39012 IEC STD 169-9 MIL-STD-348 AMIL-C-39012 IEC STD 169-10 IEC STD 169-24 IPS-SP-400 IPS-SP-401 IPS-SP-402 IPS-SP-600 ANSI/EIA-550 IEC 169-4 CECC 22190 InterfaceSpecificationExcellent describes 75 ohm center interface dimensions beaded airline dimensions with no interface with Anritsu K Connector.

8 Compatible with Anritsu V Connector and with Anritsu V Connector and with Anritsu W1 Connector .Specifies SMA performance up to 24 TNC performance up to 3 TNC performance up to 18 BNC performance up to 3 SMC performance up to 3 SMB performance up to 3 male pin to range in diameter from to male. Male pin ranges from to female push on male push on connector. Male pin ranges from to male pin ranges from to Specified up to 7-16 performance up to Connector Interface Specifications1. APC-7 is a registered trademark of Amphenol Anritsu K Connector .3. Precision slotless contacts with the tightest tolerances to achieve best Slotted female center conductors (except 7mm) with tight tolerances and very good Lower cost connectors with moderate Theoretically doesn t mode until 18 GHz, but the Anritsu 85036B 75 ohm N Calibration Kit is specified to 3 Fully mateable with the Anritsu V Connector.

9 8. Components for these styles have been developed by Hewlett-Packard (Anritsu) for internal test purposes, but are not readily Spec may still call out 34 N/cm, but we found we needed 45 N/cm for adequate Many have maximum frequency of 18 GHz, but some manufacturers specify performance of some of their SMA product line up to 27 Considered the Production Grade version of the , just as the provides the Instrument and Metrology Grades for the IEC 169-17 describes TNCs with 11 GHz or 16 GHz maximum frequency, but expectation for many connectors is only up to 3 GHz. IEC 169-26 specifies a TNC with 18 GHz maximum EIA-550 Standard specifies GHz maximum frequency, but the Anritsu 85039A F Calibration Kit is specified to 3 Used for precision measurements. CECC 22190 specifies torque at 250-300 N/cm (approx. 20 ft/lb) in the field.