Products/Services for Ham Antenna Feedthroughs
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Feedthroughs - (172 companies)Image Credit: Nor-Cal Products, Inc. Feedthroughs provide inlet and outlet tubes through the walls of a pressurized or vacuum system through a hermetic seal, while maintaining the integrity of the vacuum. Different styles...Feedthrough TypeFeedthrough Mount -
Antennas - (1281 companies)Antennas are structures or devices used to collect or radiate electromagnetic waves. Antennas are mechanical components which either transmit or receive radio frequency signals. For transmission, an oscillating RF electrical current is fed... -
Electrical Feedthroughs - (119 companies)Image Credit: Nor-Cal Products, Inc. Electrical feedthroughs transmit electrical current through the walls of a pressurized or vacuum system through a hermetic seal. Electrical feedthroughs are designed to maintain the integrity of the walls... -
Mechanical Feedthroughs - (34 companies)Mechanical feedthroughs transmit mechanical motion through the walls of a vacuum system. Both linear and rotary feedthroughs are included in this grouping. Mechanical feedthroughs transmit mechanical motion through the walls of a vacuum system. Both... -
Fluid Feedthroughs - (28 companies)Fluid feedthroughs use a hermetic seal to transmit fluids through the walls of a pressurized or vacuum system. Devices include nitrogen, air, and water feedthroughs. Fluid feedthroughs are designed to transmit fluids into high and ultrahigh vacuum... -
Antenna Mounts - (25 companies)Antenna mounts are used to hold and support antennas of all sizes and shapes. The antenna collects the electromagnetic signal and sends it to the receiver. There are many types of antennas and mounts including for radio, television, global...
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Optical Feedthroughs - (29 companies)Optical feedthroughs are used to transfer light into a sealed environment. Optical feedthroughs are based on high technology glass-to-metal bonding techniques and they overcome all the disadvantages of other mechanical feedthroughs caused...
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Chip Antennas - (111 companies)Chip antennas are semiconductor ICs used to collect or radiate electromagnetic waves. Chip antennas are a particular type of antenna valued for their small footprint. They are most commonly integrated in circuit boards to radiate high frequency...
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Horn Antennas - (73 companies)Horn antennas are used for the transmission and reception of microwave signals. They are usually fed by waveguides. Horn antennas, colloquially referred to as gain horn antennas, are used for the transmission and reception of microwave signals...
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Antenna Design Software - (13 companies)Antenna design software is used for the design and electromagnetic analysis of all types of antenna systems, including planar and microstrip antennas, hollow waveguide and horn antennas, and helical antennas. Antenna design software is used...
Product News
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MPF Products, INC.
Baseplate Feedthroughs MPF has multiple ceramic-to-metal designs for Baseplate Feedthroughs. We braze and weld them into 304 Stainless Steel 1 " OD bolts in-house. These bolts next become compressed against the wall of the vacuum/pressure vessel using an elastomer style O-ring. Baseplate Feedthroughs are typically used in High Vacuum deposition and coating applications where a quick disconnect mounting system is preferred. MPF offers these units in High Voltage, High Amperage, Multipin, Thermocouple, and Coaxial... (read more)Browse Feedthroughs Datasheets for MPF Products, INC. -
Douglas Electrical Components
Cryogenic Feedthroughs Cryogenic feedthroughs are essential for transmitting power and signals in extreme low-temperature environments, often below -100 C. Designed to maintain reliable electrical connections in applications such as sensors, processors, and communication systems, they play a critical role in ensuring performance in both scientific and industrial cryogenic systems. Douglas Electrical Components manufactures custom hermetic feedthroughs built to withstand these demanding conditions. Using specialized... (read more)Browse Electrical Connectors Datasheets for Douglas Electrical Components -
Douglas Electrical Components
Automotive Feedthroughs Douglas Electrical Components designs and manufactures hermetic electrical feedthroughs and connectors for the automotive industry, supporting everything from R &D to high-volume production. As vehicles become more advanced and connected, these solutions protect critical electrical systems from moisture, chemicals, vibration, and pressure. Its sealing technology creates durable, chemically compatible barriers across applications. In LiDAR systems, feedthroughs prevent water intrusion that can... (read more)Browse Automotive Electrical Connectors Datasheets for Douglas Electrical Components -
Douglas Electrical Components
NPT Feedthroughs & Conduit Seals NPT (National Pipe Thread) is a widely used tapered mechanical interface in electrical feedthroughs, valued for its simplicity, low cost, and ease of installation. Sealing is achieved by tightening threaded fittings with tape or sealant, creating a pressure-tight interface. Compared to SAE threads, which use parallel threads and O-ring or metal cone seals, NPT offers a more straightforward solution, though with some limitations in critical sealing and pressure performance. Douglas Electrical... (read more)Browse Feedthroughs Datasheets for Douglas Electrical Components -
Douglas Electrical Components
Vacuum Series: Conflat Feedthroughs Douglas Electrical Components manufactures hermetic electrical feedthroughs using CF (ConFlat (R)) flanges to provide reliable vacuum sealing for demanding applications. CF flanges use a clamping mechanism that compresses a copper gasket between the chamber wall and the feedthrough, creating a strong hermetic seal while reducing issues caused by tightening compared to jamnut-style vacuum face seal designs. Mounted from the atmospheric side of the chamber, these feedthroughs offer improved... (read more)Browse Electrical Feedthroughs Datasheets for Douglas Electrical Components -
Douglas Electrical Components
Multipin Feedthroughs for UHV Environments Multipin feedthroughs are engineered to transmit multiple electrical connections through sealed barriers while maintaining hermetic integrity in vacuum, pressure, and harsh operating environments. These feedthroughs are critical in industries such as aerospace, defense, semiconductor manufacturing, industrial automation, and energy systems, where reliable signal and power transmission must coexist with extreme temperatures, pressure differentials, thermal cycling, and low-outgassing... (read more)Browse Military (MIL-SPEC) Connectors Datasheets for Douglas Electrical Components -
Douglas Electrical Components
SAE Series: SAE Feedthroughs SAE (Society of Automotive Engineers) threaded feedthroughs are commonly used in industrial, automotive, and high-pressure applications where reliable sealing and mechanical strength are critical. Unlike tapered NPT threads that rely on thread interference and sealants, SAE feedthroughs use straight threads combined with an O-ring seal positioned between the hex and threaded portion of the housing. As the fitting is tightened, the O-ring compresses against the mating surface to create... (read more)Browse Feedthroughs Datasheets for Douglas Electrical Components -
Douglas Electrical Components
Hermetic Feedthroughs and Nuclear Modernization As demand grows for both nuclear energy and defense modernization, the need for secure and efficient infrastructure continues to rise. Systems that safely isolate hazardous materials while enabling reliable operation are essential, and feedthroughs play a critical role in making that possible. Though often overlooked, nuclear feedthroughs are foundational to glovebox and reactor system performance. They support upgrades to aging facilities, reduce contamination risks, and enable modern... (read more)Browse Electrical Feedthroughs Datasheets for Douglas Electrical Components -
Douglas Electrical Components
DuctorSeal® Series: Hermetic Feedthroughs DuctorSeal (R) hermetic wire feedthroughs and sealed cable assemblies provide custom, liquid- and gas-tight electrical pass-through solutions for demanding environments. Delivered pre-wired and fully tested, these feedthroughs enable seamless, drop-in installation while supporting virtually any combination of wires, cables, and connectors on both sides of a bulkhead. With the ability to hermetically seal directly to the conductor, DuctorSeal offers exceptional design flexibility, supporting up... (read more)Browse Feedthroughs Datasheets for Douglas Electrical Components -
Douglas Electrical Components
High Voltage Feedthrough Solutions Douglas Electrical Components designs and manufactures hermetic high voltage feedthroughs for power transmission in demanding environments across industries such as aerospace, semiconductor, oil and gas, power generation, cryogenics, and industrial systems. Using proprietary hermetic epoxy sealing technology, Douglas can hermetically seal high voltage wires, cables, connectors, terminals, and stud assemblies while supporting operating voltages exceeding 30kV for wire and cable designs and over... (read more)Browse Electrical Feedthroughs Datasheets for Douglas Electrical Components
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Index to Book Reviews
…Valves in Pulse Techniques, by P. A. Neeteson (Reviewed by W. H. Lap- ham ): 5843 Vierpoltheorie und .... Angular Velocity, Special Word for: 5786 Anistropy of Cobalt-Substituted Mn Ferrite Single Crystals: 5841 Antennas : 5707, 5710, 5756, 5856, 5858 Ferrite-Filled Apertures: 5856 Mounted … of Brune Networks: 5886 C Capacitors: 5705, 5749, 5802 Cascaded Feedthrough : 5705 Russian Terminology: 5802…
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Index to Subjects
…Valves in Pulse Techniques, by P. A. Neeteson (Reviewed by W. H. Lap- ham ): 5843 Vierpoltheorie und .... Angular Velocity, Special Word for: 5786 Anistropy of Cobalt-Substituted Mn Ferrite Single Crystals: 5841 Antennas : 5707, 5710, 5756, 5856, 5858 Ferrite-Filled Apertures: 5856 Mounted … of Brune Networks: 5886 C Capacitors: 5705, 5749, 5802 Cascaded Feedthrough : 5705 Russian Terminology: 5802…
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Microwave reflectometry for edge density profile measurements on TFTR
…apertures are recessed 3 mm behind the h n t surface of the ICRF antenna Faraday shield. .... to limit disruption forces; a single 3 mm thick qua& window is used for the vacuum feedthrough . .... transmitted signal off a metal plate located from 2 through 40 cm away ham the launcher aperture…
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Electronics/Transmitter design - Wikibooks, open books for an open world
See w: Antenna tuner and w:balun for details of matching networks and baluns respectively. .... While this section was written from the point of view of a radio ham with relation to … wires carrying DC supplies, 50 Hz AC connections, audio and control signals is to use a feedthrough capacitor.
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Bistatic Radar: Principles and Practice
Sidelobes of a receiving antenna may conduct different kinds of unwanted signals into the receiver, such as clutter and jamming signals (see Section 7.5), feedthrough signal in continuous-wave radars (see Section 3.5) and unintended interference from other radio aids. .... For instance, when a Hamming function based illumination pattern is used, the sidelobe level will not exceed…
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Practical Antenna Handbook, Fifth Edition > APPENDIX B: Suppliers and Other Resources
• MFJ Enterprises, Inc. (analyzers, tuners, twin-lead, copper wire, window feedthrough panels). .... • New Ham Store (coaxial cable tools, connectors, lightning arrestors). .... • PalStar Inc. ( antenna analyzer, tuners for 160-6 m, wattmeters, dummy loads) .
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Power Trade-Offs and Low-Power in Analog CMOS ICs
…69 prototype 84 reconstruction 153 systems 4 temperature 10,11 AND gate 176 antenna 88 architecture level .... clock cycle 13,14,18,22,54 distribution 24 feedthrough 114 frequency 13‚14 jitter 6,172,174 … group-delay 25,84,89,90,204,205 GSM 89 gyrator filters 60 Hamming 164 Hanning 164…
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Complete Wireless Design > Communication System Design and Propagation
…in wide tuning-range applications, and is especially common in certain HF SSB (single-sideband) ham radios. .... First, the antenna picks up the electromagnetic waves from the environment and, due to certain antenna’s natural .... Further, BPF2 will assist in rejecting some of the out-of-band signals and LO feedthrough .
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Electronic Circuits
…1432 and gate 629 anemometer 1061 angle 1061 – modulation 1191 anode 3 antenna 1163 antifuse 720 … distortion 185 fall time 589, 923 fall-through time 700 feedback resistance 571 feedthrough 942 FET, junction .... Hamming – code 703 – window 1001 Hanning window 1001 hardware description language 1462 harmonic oscillator 852…
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A Highly Integrated 1.8 GHz Frequency Synthesizer Based on a MEMS Resonator
An- tennas and Propagation Society Int. Symp., Jul. 2008, pp. 1–4. .... [43] D. Ham and A. Hajimiri, “Concepts and methods in optimization of in- tegrated LC VCOs,” … Najafi, “Fabrication and characterization of a wafer-level MEMS vacuum package with vertical feedthroughs ,” J. Microelectromech.
