A coaxial termination is a 50Ω or 75Ω impedance-matched load (typically 0-18 GHz) that absorbs RF energy to prevent signal reflections, achieving VSWR <1.2:1. Constructed with carbon-composite or thin-film resistors in precision brass/beryllium copper housings, it handles up to 100W continuous power. Used in testing, it provides >30dB return loss up to 40GHz when properly […]
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An industrial microwave oven is a high-power system (typically 1-100 kW) using 915 MHz or 2.45 GHz frequencies for large-scale processing. These heavy-duty units feature magnetron arrays, conveyor belts (1-10 m/min speed), and temperature controls (±2°C accuracy). Applications include food drying (reducing 50% processing time), chemical synthesis, and rubber vulcanization, achieving 30% higher energy efficiency
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Double Ridged Waveguides are specialized microwave transmission structures featuring two internal ridges that lower cutoff frequencies while maintaining compact dimensions. Typically operating from 1-40 GHz, they offer 15-30% wider bandwidth than standard waveguides. The ridges reduce impedance to 50Ω, improving compatibility with coaxial systems. Precision-machined from aluminum or copper, they’re used in radar and satellite
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SATCOM antenna is a device used for satellite communication, and its operating frequency is usually between 1-30GHz. It enables data transmission between ground stations and satellites. For example, the Ku-band antenna has a diameter of about 0.9 meters and is suitable for high-speed Internet and video transmission. It needs to be precisely aligned with the
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A standard waveguide is a metal tube that transmits microwave signals. For example, the WR-90 waveguide operates at 8.2-12.4 GHz and has specific dimensions (22.86 mm wide × 10.16 mm high). It is used for efficient transmission and directional radiation. Frequency, loss and power capacity must be considered during design. Definition Satcom engineers know standard
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May 28th, 2023 – Xi’an, SHAANXI – Dolph Microave, a design and manufacturer of superior waveguide components, antennas – is pleased to announce to announce the completion of the design and production of the 8-18GHz WRD650 waveguide isolator, It use a Y-junction structure housed in standard double ridge waveguide with one addition of a matched
WRD650 Isolators | 8.0GHz – 18.0GHz | 250W Forward/ 200W Reverse | Isolation 15dB Read More »
Dolph Microwave places significant design emphasis on optimizing the selection and bias point of the ferrite material used in their circulators. This prioritization is aimed at minimizing the insertion loss and maximizing the isolation at the desired frequency, bandwidth, and power level. By carefully choosing and biasing the ferrite material, Dolph Microwave ensures that the circulators
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Block type directional couplers are passive devices mainly used in the field of wireless technology. They couple the defined amount of electromagnetic power in the transmission line to the port, allowing the signal to be used in another circuit. Dolph Microwave’s DH-900WBDC25PPPPC broadband directional coupler is a wide walled porous energy coupling device operating in the
W-Band, 75-110GHz, WR10 Full band, Block Type Directional Couplers Read More »
Dolph Microwave manufactures standard gain horn antennas specifically designs for utilization in emissions and immunity testing over the frequency range of 0.32 to 110 GHz. And, they offer high power handling capability, and low loss, also high directivity, and near constant electrical performance across a wide bandwidth, low gain variation across their operating frequency. In
【Standard Gain Horn Antenna】WR90 15dB SMA, Standard Gain Horn Antenna Read More »
Dolph Microwave waveguide to coaxial adapter (also known as a waveguide coaxial transition) is manufactured with a right angle design. Right angle waveguide to coaxial adapter / transition has a waveguide size of WR-340 and UDR cover flange. This WR-340 waveguide to coax adapter / transition is constructed with a SMA coaxial connector that is
Dolph Microwave warrants our products to be free from defective material and workmanship for a period of one year from the date of delivery. All defective parts will be replaced and repair work required by normal use will be performed, without charge, within this one year period. This warranty shall be exclusive and in lieu of all other warranties expressed or implied.
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