Transmission LIne
See Also: Transmission Line Pulse
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Product
Directional Couplers
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Pasternack directional coupler category is passive devices that couple part of the transmission power in a transmission line. Our directional coupler series provides the bandwidth, high directivity and higher power that engineers need for their most demanding application designs. RF directional couplers often use two transmission lines set close together so that energy passing through one is coupled to the other. Many Pasternack directional coupler components are RoHS and REACH compliant. RF directional couplers are available with 4.1/9.5, 4.3-10, 7/16 DIN, Type N or SMA connectors. Our directional coupler line has 6dB, 10dB, 15dB, 16dB, 20dB, 30dB or 35dB coupling values. Power ratings of our typical and high power directional couplers range from 25 Watts to 70 Watts. Directional coupler frequency range of this product design is from 1 GHz to 8 GHz. As with our other over 40,000 RF, microwave and millimeter wave components from Pasternack, this directional coupler series is in-stock. Not only are these couplers in directional design in stock, they also will ship the same day as they are purchased.
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Product
Coaxial Waveguide Adapter, 1.85 mm (m), 50 to 67 GHz
V281B
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The Keysight V281B adapter transforms waveguide transmission line into 50-ohm coaxial line. Power can transmitted in either direction, and each adapter covers the full frequency range of its waveguide band with SWR less than 1.3.
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Product
Rotman Lens Designer
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Rotman Lens Designer (RLD) is a software tool for the design, synthesis, and analysis of Rotman Lenses and their variants. It is based on Geometrical Optics combined with the classical Rotman Lens design equations. It is intended for rapid development and analysis of Rotman Lenses given several physical and electrical input parameters. RLD generates the proper lens contours, transmission line geometry, absorptive port (dummy port) geometry, provides an approximate analysis of performance, and generates geometry files for import into Remcom's XFdtd® for further analysis and fabrication.
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Product
Wattchman RF Station Monitor/Alarm Systems
81070 Series
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The Coaxial Dynamics Wattchman Monitor/Alarm measures forward and reflected RF power simultaneously in 50-Ohm coaxial cables and transmission lines. It is compatible with our entire series of 7/8" through 6-1/8" Line Sections and will accept plug-in elements that range from 5 watts to 100 kW full scale from 0.45 MHz to 2300 MHz.
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Product
Electro Mechanical Solenoid Switch
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Electro Mechanical Solenoid Switches are a type of switch that are used in applications that require remote-controlled or timed transmission line switching. These switches are very useful in operational systems and test setups where they supply a variety of switching combinations.View more Electro Mechanical Solenoid Switch
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Product
Balanced Measurements
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The unbalanced interface of a VNA is not very well suited for measuring balanced circuits like antennas, transmission lines or chip impedances. In fact it is nearly impossible to get a decent calibration on a balanced 2-port measurement using coax cables.
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Product
Broadband, Multirange Directional RF Wattmeter
81060
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With the Model 81060 Directional Wattmeter you can now measure RF power in 50-Ohm coaxial cable and transmission lines without the need for additional plug-in elements.
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Product
Air Core Shunt Reactors
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Shunt Reactors act as absorbers of reactive power to increase energy efficiency of the power system. Shunt Reactors are inductors that are used in order to compensate capacitive reactive power generated by long and lightly loaded transmission lines as well as underground cables, thus allowing the flow of more active power through the system and avoiding over voltages. The shunt reactors provide inductive compensation.
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Product
LXI 2.4GHz 50ohm 16x8 Matrix
60-771-003
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The 60-771 is a family of integrated RF matrices suitable for use up to 2.4GHz in a 50 ohm transmission line system. The matrix design permits any single Y input to be connected to any single X input, permitting the concurrent connection of 8 RF paths. All signal paths are bi-directional permitting any connection to be used as an input or an output.
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Product
3 DB 90 Degree Hybrid Couplers
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KRYTAR's 90 Degree Hybrid Couplers perform many functions, including splitting and combining signals in amplifiers, switching circuits, and antenna beam-forming networks used in a wide range of commercial and military applications. 90 degree hybrids are used in circuits requiring a balanced division of power into two transmission lines with 90 degree separation of phase.
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Product
Coaxial Waveguide Adapter, APC-7, 12.4 to 18 GHz
P281B
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The Keysight P281B adapter transforms waveguide transmission line into 50-ohm coaxial line. Power can transmitted in either direction, and each adapter covers the full frequency range of its waveguide band with SWR less than 1.3.
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Product
LXI 2.4GHz 50ohm 16x4 Matrix
60-772-003
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The 60-772 is a family of integrated RF matrices suitable for use up to 2.4GHz in a 50 ohm transmission line system. The matrix design permits any single Y input to be connected to any single X input, permitting the concurrent connection of 4 RF paths. All signal paths are bi-directional permitting any connection to be used as an input or an output.
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Product
Manual Tuners / Impedance Tuners
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Maury manual tuners are based on precision slide screw technology that utilizes broadband slab line transmission structure and passive probes to create impedances for devices. The probes are designed to be very close to onequarter wavelength in the linear dimension at the mid-band of each range. Since each tuner has two probes, this results in improved matching characteristics for each unit. Another key feature of this series of tuners is the inclusion of a LCD position readout of the carriage position on those units operating below 18 GHz. Higher frequency tuners utilize a micrometer carriage drive. The positional repeatability and high matching range of these tuners make them ideally suited for use as a variable impedance source in applications like device characterization. Such measurements depend upon the ability of the tuner to establish impedances out near the edge of the Smith chart and to reproduce the electrical characteristics as a function of mechanical position. The tuners in this series are also easy to use due to the nearly independent electrical results of the mechanical motions. The depth of penetration of the probe into the transmission line determines the magnitude of the reflection, while the position of the probe along the line determines the phase. While there is some interaction, the effects are almost independent of each other. https://www.maurymw.com/images/mw-rf/mst982e35.jpg
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Product
Dual (Bi) Directional Couplers
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Pasternack dual directional coupler (also known as bi-directional coupler) series are passive devices that couple part of the transmission power in a transmission line. Our dual directional coupler components provide the bandwidth, high directivity and higher power that designers need for their most demanding applications. RF dual directional couplers often use two transmission lines set close together so that energy passing through one is coupled to the other. Many Pasternack bi-directional coupler items are RoHS and REACH compliant. Couplers that are dual directional from Pasternack are available with SC, SMA and Type N connectors. This dual/bi directional series is offered in 10dB, 20dB, 30dB, 40dB and 50dB coupling values. Power ratings for our dual directional couplers range from 10 Watts to 10 Watts. Frequency ratings for our bi-directional couplers range from 1 GHz to 8 GHz. Like the other over 40,000 RF, microwave and millimeter wave components from Pasternack, our dual (bi) directional coupler series is in-stock. Not only our these couplers in stock, they also will ship the same-day as they are purchased.
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Product
Coaxial Switches
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An electromechanical switch made primarily for routing microwave signals/RF energy from one point to another within a transmission line. Coaxial switches can be used in either an industrial environment or in the lab. These electromechanical devices are also used for RF testing equipment and in large RF communication systems and networks. Coaxial switches vary by port configuration, switch type, maximum frequency, isolation, insertion loss, voltage standing wave ratio (VSWR) and package type. Coaxial switches are able to route RF signals over a broad bandwidth from DC to 40 GHz, and are now offered with the Low PIM option which will improve Passive Intermodulation levels from -110dBc (standard switch) to -160dBc.
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Product
LXI 2.4GHz 50ohm 32x8 Matrix
60-771-001
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The 60-771 is a family of integrated RF matrices suitable for use up to 2.4GHz in a 50 ohm transmission line system. The matrix design permits any single Y input to be connected to any single X input, permitting the concurrent connection of 8 RF paths. All signal paths are bi-directional permitting any connection to be used as an input or an output.
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Product
LXI 2.4GHz 50ohm 16x16 Matrix
60-770-003
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The 60-770 is a family of integrated RF matrices suitable for use up to 2.4GHz in a 50 ohm transmission line system. The matrix design permits any single Y input to be connected to any single X input, permitting the concurrent connection of 16 RF paths. All signal paths are bi-directional permitting any connection to be used as an input or an output.
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Product
Line Protection
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Schweitzer Engineering Laboratories, Inc.
SEL transmission line protection relays provide subcycle line differential and multizone distance protection for a secure, reliable, and high-speed solution. Their fault-locating capabilities allow you to efficiently dispatch line crews to quickly isolate line problems and restore service faster.
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Product
High-Power Directional RF Wattmeters
81100-A Series
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The 81100-A series of High-Power Directional RF Wattmeters are designed to measure RF power in 50-Ohm 1-5/8 inch coaxial transmission lines. To use the Wattmeter, simply connect it between the transmitter and antenna or dummy load and plug in the appropriate measuring element.
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Product
Load Termination
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A process of ending a transmission line or cable to either dissipate energy as heat or prepare it for connection to a device.
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Product
Lange Couplers
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The Lange Coupler is a four-port interdigitated structure originally developed by Dr. Julius Lange in 1969. They are a common RF/microwave circuit. The coupling is derived from closely spaced transmission lines, such as microstrip lines. With the introduction of Ion Beam Milling, SemiGen’s ability to consistently produce Lange Couplers with lines and spaces as small as 10 microns and controlled to tolerances of +/- 1 micron is a direct result of our anisotropic ion beam etching process.
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Product
LXI WTB Extender
60-984-001
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The 60-894 provides a simple an effective method of joining two LXI WTB bus cables together to extend the length of available cables. It is an ideal solution for cable extension where users need to experiment with different cabling solutions without having to totally replace the cables in the system. The 60-894 provides mating connectors for the WTB on each end connected together by a set of accurate differential transmission lines to avoid additional reflections on the cable. The 60-894 is entirely passive and is compatible with the LXI specification.
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Product
Teleprotection
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Schweitzer Engineering Laboratories, Inc.
Teleprotection systems monitor and protect transmission lines using communications-assisted coordination between relays.
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Product
RF Terminators
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Typically placed at the end of a transmission line and is designed to match the cable's AC impedance.
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Product
Impedance Measurement
CITS880s
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Finer geometries and thinner copper can present a challenge for fabricators measuring impedance on leading edge PCBs. The CITS880s answers that challenge with the introduction of Launch Point Extrapolation (LPE). LPE extrapolates the TDR response back to a point close to the start of the transmission line effectively allowing to users more accurately to measure the instantaneous or incident impedance of the line.
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Product
WR-8 Waveguide Straight
WAG-08-SXX
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Precision mmw F-Band, WR-08, Straight waveguides are built with high precision and then gold plated for high corrosion resistance. They have very low loss and great VSWR. Manufactured to rigid specifications, these transmission line components provide minimum detrimental effects on the overall system VSWR.XX = length in inchesFeatures of WR-08, Waveguide Straights• 90 GHz to 140 GHz• Low Insertion Loss, typical for length• Low Return Loss, typical for length• UG-387 flangeView more WR-8 Waveguide Straight
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Product
Average Reading Directional RF Wattmeter
81000-A
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The Model 81000-A Wattmeter ... now you can measure RF Power in 50-Ohm coaxial cable and transmission lines, and accept plug-in elements in the range of 100 mW to 10 kW full scale, and from 0.45 to 2300 MHz.
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Product
Thyristor Surge Suppressor (TSS)
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When protecting parallel (double) circuit transmission lines, devices have two main functions in transient mode: clipping the voltage and drifting the current due to overload.
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Product
Coaxial Waveguide Adapter, 3.5 mm (f), 18 to 26.5 GHz
K281C
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The Keysight K281C adapter transforms waveguide transmission line into 50-ohm coaxial line. Power can be transmitted in either direction, and each adapter covers the full frequency range of its waveguide band with SWR less than 1.07.
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Product
LXI 2.4GHz 50ohm 8x4 Matrix
60-772-004
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The 60-772 is a family of integrated RF matrices suitable for use up to 2.4GHz in a 50 ohm transmission line system. The matrix design permits any single Y input to be connected to any single X input, permitting the concurrent connection of 4 RF paths. All signal paths are bi-directional permitting any connection to be used as an input or an output.
