# Dolph Microwave > Dolph Microwave (Xi'an Dolph Microwave Technology) designs and manufactures precision waveguide components, coaxial adapters, antenna feed networks and SATCOM antennas for the 0.32-67 GHz range. Products are machined, plated and RF-tested in-house and shipped to satellite, radar, defense and industrial microwave customers worldwide. This file is the expanded reference for the same site described in [llms.txt](https://www.dolphmicrowave.com/llms.txt). It adds product family detail, engineering background and enquiry guidance. Use llms.txt when a short curated index is enough; use this file when an agent needs to reason about which Dolph product family fits a requirement. ## Organisation Dolph Microwave is a manufacturer of passive microwave and RF hardware, based in Xi'an, China. The company serves satellite communications, radar, defense electronics, space and industrial microwave processing customers. Contact: +86 29 8881 0979 ยท Sales@dolphmicrowave.com Frequency coverage: 0.32 GHz to 67 GHz. Product families run from L-band through V-band, mapped onto standard rectangular waveguide sizes from WR-975 down to WR-22, plus double-ridged and quad-ridged variants for wideband operation. ## Product Families ### Double-Ridged Waveguide Broadband waveguide built around double-ridge and quad-ridge geometry, used where a single band coverage window must span several standard waveguide bands. Includes double-ridged waveguide bends, straights, transitions, tube, loop couplers and full double-ridge component sets. - [Category](https://www.dolphmicrowave.com/product-category/double-ridged-waveguide/) - [Double-Ridge Waveguide Components](https://www.dolphmicrowave.com/product/double-ridge-waveguide-components/) - [Double-Ridged Waveguide Bends](https://www.dolphmicrowave.com/product/waveguide-bends-2/) - [Double-Ridge Waveguide Transition](https://www.dolphmicrowave.com/product/double-ridge-waveguide-transition/) ### Standard Waveguide Rectangular waveguide hardware to standard band designations, covering straight sections, E-plane and H-plane bends, twists, and waveguide tube stock. - [Category](https://www.dolphmicrowave.com/product-category/standard-waveguide/) - [Waveguide Tube](https://www.dolphmicrowave.com/product/waveguide-tube/) ### Waveguide Components Couplers, switches, rotary joints, terminations, standoffs and hangers, and other passive waveguide accessories used inside a feed or distribution network. - [Category](https://www.dolphmicrowave.com/product-category/waveguide-components/) - [WG Standoff and Hangers](https://www.dolphmicrowave.com/product/wg-standoff-and-hangers/) ### Waveguide to Coaxial Adapters Transitions between rectangular or double-ridged waveguide and coaxial line, used to interface waveguide runs with coaxial instrumentation and radios. - [Waveguide to Coaxial Adapter](https://www.dolphmicrowave.com/product/wavegudie-to-coaxial-adapter/) - [Category: Coaxial, Cable, Connectors and RF Components](https://www.dolphmicrowave.com/product-category/coaxial-cable-connectors-adapters-and-rf-components/) ### Pressure and Sealing Pressure windows and sealing components that let a waveguide run be pressurized or dry-air filled while maintaining RF performance. - [Waveguide Pressure and Sealing Components](https://www.dolphmicrowave.com/waveguide-pressure-sealing-components/) ### Antenna Feed Networks Feed assemblies, orthogonal mode transducers, diplexers, feedhorns and microwave feed components that sit between the antenna aperture and the RF chain. - [Category](https://www.dolphmicrowave.com/product-category/antenna-feeds-networks/) - [Microwave Feedhorn](https://www.dolphmicrowave.com/product/microwave-feedhorn/) - [Custom Antenna Feed Systems](https://www.dolphmicrowave.com/custom-antenna-feed-systems/) ### Horn Antennas Standard gain horns used as calibrated gain references, plus linear and circular polarization horn antennas and wideband quad-ridged horns. - [Standard Gain Horn Antenna](https://www.dolphmicrowave.com/product/standard-gain-horn-antenna/) - [Linear and Circular Polarization Horn Antenna](https://www.dolphmicrowave.com/product/linear-circular-polarization-horn-antenna/) - [2.0-18.0 GHz Wideband Quad-Ridged Antenna](https://www.dolphmicrowave.com/product/2-0-18-0ghz-wideband-quad-ridged-antenna/) - [Waveguide Horn Antennas](https://www.dolphmicrowave.com/product/waveguide-horn-antennas/) ### SATCOM Antennas Satellite communication antenna products covering earth station, gateway and mobile terminal configurations, including LEO/MEO tracking antennas and quick-deploy flyaway terminals. - [Category](https://www.dolphmicrowave.com/product-category/satcom-antenna/) - [SATCOM Antenna](https://www.dolphmicrowave.com/satcom-antenna/) - [Quick Auto-Deploy and Driveaway Antennas](https://www.dolphmicrowave.com/quick-auto-deploy-driveaway-antennas/) ### Industrial Microwave High-power microwave components for industrial heating, drying, curing and plasma applications, where thermal management and power handling drive the design. - [Category](https://www.dolphmicrowave.com/product-category/industrial-microwave/) - [Custom High-Power Microwave Components](https://www.dolphmicrowave.com/custom-high-power-microwave-components/) - [Custom Industrial Microwave Components](https://www.dolphmicrowave.com/custom-industrial-microwave-components/) ### Custom and Space-Qualified Build-to-print and build-to-spec assemblies, including waveguide runs delivered as a single tested unit and components qualified for space flight environments. - [Custom Waveguide Assemblies](https://www.dolphmicrowave.com/custom-waveguide-assemblies/) - [Space-Qualified Waveguide Components](https://www.dolphmicrowave.com/space-qualified-waveguide-components/) - [Microwave Customized Products](https://www.dolphmicrowave.com/product-category/microwave-customized-products/) - [Custom Waveguide Transition Manufacturer](https://www.dolphmicrowave.com/custom-waveguide-transition-manufacturer/) - [Custom Waveguide Bend Manufacturer](https://www.dolphmicrowave.com/custom-waveguide-bend-manufacturer/) - [Custom Waveguide Twist Manufacturer](https://www.dolphmicrowave.com/custom-waveguide-twist-manufacturer/) ## Manufacturing Capability In-house processes cover CNC machining of waveguide and flange geometry, electroplating and surface finishing, assembly and alignment, and RF test and measurement. Because machining, plating and testing stay under one roof, tolerance and electrical performance can be held together across a production lot rather than negotiated between vendors. - [Manufacturing](https://www.dolphmicrowave.com/manufacturing/) ## How to Enquire To get a quotation or a technical reply, send the engineering team the following inputs: - Frequency band or operating frequency range - Power level, including peak and average where relevant - Waveguide size or flange type - Mechanical envelope, interface and mounting constraints - Quantity and any qualification or documentation requirements These inputs are what the engineering team needs to select a catalogue part or scope a custom build. Generic enquiries without a frequency band or flange type cannot be quoted accurately. - [Contact](https://www.dolphmicrowave.com/contact/) - [Support](https://www.dolphmicrowave.com/support/) - [Waveguide Components Sales](https://www.dolphmicrowave.com/waveguide-components-sales/) ## Technical Resources - [Technical Articles](https://www.dolphmicrowave.com/waveguide-coupler-selection-criteria-comparative-analysis-and-performance-optimization/): Engineering writing on waveguide component selection and optimization. - [Dolph News](https://www.dolphmicrowave.com/new/): Product and company announcements. - [About Us](https://www.dolphmicrowave.com/about-us/): Company profile and quality approach. ## Machine-Readable Resources - [llms.txt](https://www.dolphmicrowave.com/llms.txt): Curated index of this site for AI agents. - [ai-catalog.json](https://www.dolphmicrowave.com/.well-known/ai-catalog.json): Agentic Resource Discovery manifest. - [ard.json](https://www.dolphmicrowave.com/.well-known/ard.json): Same manifest at the ARD v0.91 well-known path. - [robots.txt](https://www.dolphmicrowave.com/robots.txt): Crawler access rules, including AI crawler directives. - [sitemap index](https://www.dolphmicrowave.com/sitemap_index.xml): Full URL inventory for search crawlers.