March 5, 2024

WRD650 Isolators | 8.0GHz – 18.0GHz | 250W Forward/ 200W Reverse | Isolation 15dB

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 […]

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What is the design emphasis for Dolph Microwave’ circulators

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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W-Band, 75-110GHz, WR10 Full band, Block Type Directional Couplers

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

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Up to 330GHz. mmWave & Microwave Products

Excited to share you the highlights of our precision mmWave products in 2024: Standard Gain Horns, WG to Coaxial Adapters, Attenuators, Couplers, Power Dividers, Terminations, Isolators, Straights/Bends/Twists etc. We provide microwave products, assembly and engineering services for up to 330GHz. Customers ranges from telecom, government to university research, involving in military RADAR systems, EW units, Commercial RF solutions

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Packaging and Integration Technology of Double Ridge Waveguide Components

In the realm of modern telecommunication and radar systems, the evolution of waveguide technology has been pivotal in facilitating the transmission of electromagnetic waves with enhanced efficiency and reliability. Among various waveguide designs, the double ridge waveguide stands out as a significant innovation, offering unique characteristics that cater to specific industry needs. Understanding its structure,

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How was complete coverage achieved with a minimum s-band antenna gain of -7 dBi

To achieve complete coverage with a minimum s-band antenna gain of -7 dBi, a straightforward configuration utilizing dual circularly polarized microstrip patch antennas was employed. The configuration involved the implementation of a wide bandwidth, dual circularly polarized truncated corner microstrip antenna, which was complemented by two parasitic patches. To enhance the cross polarization bandwidth, diagonally embedded holes

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[Dolph Microwave] 4.5 Meter Turning Head Antenna with Ext.Ka-band Tx27.5 to 31.0 GHz, Rx17.7-21.2GHz

Dolph Microwave finished production 4.5 Meter Turning Head Antenna and test of Ext. Ka-band Tx27.5 to 31.0 GHz, Rx17.7-21.2GHz satcom antenna with 4 port Circular Pol. Axis Ratio 0.6dB. Product & Pedestal Features:  Wide variety of feed options designed to meet the latest international standards. S, C, X, Ku, DBS and Ka Band, Tx/Rx, 2Tx/2Rx, TT&C,

[Dolph Microwave] 4.5 Meter Turning Head Antenna with Ext.Ka-band Tx27.5 to 31.0 GHz, Rx17.7-21.2GHz Read More »

Curved Waveguide Types

There are two types of curved waveguides: E-surface curved and H-surface curved. The curved waveguides include arc-shaped curved waveguides and cut-angle curved waveguides. Cut-angle curved waveguides can be used in situations where the arm length is short, the waveguide is large, the bandwidth is narrow, and the power is low. The standard bending angle is 90°,

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C-band Antenna Feeds & RF Networks from Dolph Microwave

Antenna feeds and RF networks as the heart of antenna system from Dolph Microwave is R&D by experienced our engineers who engaged into satcom and RF field for years. The components can be offered including OMT, duplixer, filter, phase shifter and feedhorn etc. covering different bands like C-band, Ku-band, Ka-band, S-band. X-band and required dual band etc. Our

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