Model No.: WT-120
Brand: WEITIAN
Looking for a dependable Double Ridged Waveguide Coaxial Adapter for your 7.5-18GHz test bench or radar front-end? As Foreign Trade Director at Xi'an Weitian Electronic Technology Co., Ltd., I work directly with U.S. engineering teams who tell me that the biggest frustration in sourcing waveguide components is finding a supplier that delivers consistent VSWR and insertion loss across the full band — without long lead times or surprise quality issues.
Our WRD750 Waveguide to SMA Adapter is designed to solve exactly that. This 7.5-18GHz Waveguide Coaxial Transition covers 7.5 to 18 GHz with VSWR ≤1.3 and insertion loss ≤0.5 dB, providing a stable, low-loss bridge between double-ridged waveguide and 50-ohm coaxial systems. This End Launch Waveguide Adapter is suitable for anechoic chamber calibration setups often paired with a Standard Gain Horn Antenna, radar transceiver integration, and satellite ground station equipment.
We manufacture in-house — from precision machining to final RF testing — under an ISO 9001:2015 certified quality management system. Every unit undergoes RF testing before shipment, and full datasheets are available upon request.
| Parameter | Specification | U.S. Market Localization Note |
|---|---|---|
| Waveguide Standard | WRD750 (Double Ridged) | Matches U.S. standard WR-series waveguide nomenclature |
| Frequency Range | 7.5 – 18 GHz | Full-band coverage, no band gaps |
| VSWR | ≤ 1.3 | Measured across full 7.5-18GHz band |
| Insertion Loss | ≤ 0.5 dB | Including connector and transition loss |
| Average Power | ≤ 50 W (CW) | Sufficient for most lab and R&D applications |
| Connector Type | SMA-K (Female) | SMA is the most widely used RF connector in U.S. test labs |
| Optional Connectors | SMA-J, 2.92-K/J, N-K/J, 2.4-K, 1.85-K, 1.0-K | Compatible with Keysight, Anritsu, and other U.S.-standard test equipment |
| Body Material | Copper, Silver-Plated | Optional: aluminum, copper passivation |
| Surface Finish | Sea-gray paint | Custom finishes available |
| Custom Waveguide Sizes | WRD84 – WRD180 | Standard custom range; other sizes evaluated on request |
| System Impedance | 50 Ω | Standard for U.S. RF and microwave systems |
| Quality System | ISO 9001:2015 certified | In-house full-parameter testing per unit |
| Operating Temperature | Consult factory | Custom environmental specifications can be evaluated |
| U.S. Market Segment | Buyer Type | Local Pain Point | Our Product Advantage (Quantified) |
|---|---|---|---|
| Test & Measurement | EMC labs, anechoic chamber operators, third-party test houses | Frequent adapter swaps cause calibration drift; need flat response across the full 7.5-18GHz band | VSWR ≤1.3 and IL ≤0.5 dB across entire band; copper silver-plated construction resists corrosion for long-term measurement stability |
| Defense & Aerospace | Radar system integrators, EW subsystem manufacturers | Require batch-to-batch consistency and reliable power handling for field-deployed systems | 50W average power (CW); 100% unit-level RF testing before shipment; ISO 9001:2015 traceable production process |
| Satcom & 5G/6G R&D | Satellite ground station builders, communications equipment R&D centers | Multi-band R&D platforms need flexible connector and waveguide options with predictable lead times | SMA-K interface compatible with mainstream U.S. test equipment; WRD84-WRD180 custom waveguide sizes supported; works with Waveguide Load for terminal matching in test setups |
| University & Research | University microwave labs, government research institutions | Tight budgets require reliable performance without premium-brand pricing; need components that integrate into teaching rigs | Cost-effective in-house manufacturing; compatible with Waveguide Rotary Joint in rotating radar teaching platforms; engineering support via email |
Q1: What connector types can you supply for this Double Ridged Waveguide Adapter? A: The standard configuration is SMA-K (female). We also offer SMA-J, 2.92mm (K-type), N-type, 2.4mm, 1.85mm (V-type), and 1.0mm connectors in both male and female versions. Connector selection affects the upper frequency limit — our engineering team can recommend the appropriate option for your specific band and power requirements.
Q2: Can you customize the waveguide size beyond WRD750? A: Yes. We support double-ridged waveguide sizes from WRD84 to WRD180 as standard custom options. Other sizes can be evaluated on request. All custom sizes go through the same in-house RF testing process as our standard products, and test reports can be provided.
Q3: Do you provide test reports and datasheets? A: Yes. Every unit undergoes RF testing before shipment, and we provide product datasheets upon request. For custom orders, we can provide individual test reports showing measured VSWR and insertion loss across the specified frequency band.
CTA:
Ready to specify your Waveguide to Coaxial Adapter? Contact our RF engineering team today for a datasheet, custom configuration quote, or technical consultation. We aim to respond to U.S. inquiries within one business day.


