PASTERNACK PE9804 Sma Female Waveguide Coax Adapter WR-90 8.2-12.4GHZ

( Brand: Pasternack ), ( Manufacturer Part Number: PE9804 ), ( Type: Adapter ), ( Connector B: Wr-90 ), ( Connector A: Sma/female ), ( Country Of Origin: United States )

Review PASTERNACK New To Sma Female Waveguide Coax Adapter 8.2-12.4ghz

The **Pasternack PE9804 WR-90 SMA Female Waveguide to Coaxial Adapter** is a precision-engineered RF transition designed for high-frequency applications within the 8.2 12.4 GHz range, making it an indispensable component for demanding communication, radar, and test-and-measurement systems. This rugged yet compact adapter bridges the gap between WR-90 rectangular waveguide and SMA coaxial connectors, ensuring minimal signal loss and optimal impedance matching across its full operating bandwidth. Constructed from high-purity aluminum with a durable anodized finish, the adapter is built to withstand harsh environments while maintaining exceptional dimensional stability, critical for maintaining consistent performance in high-power or high-precision applications. The WR-90 waveguide interface features precise flanges and a smooth, low-loss interior surface, minimizing reflections and signal degradation, while the SMA female connector provides a secure, repeatable mating interface for coaxial cables, minimizing insertion loss and maximizing return loss. Ideal for use in military radar systems, satellite communications, EW (electronic warfare) platforms, and laboratory test setups, this adapter is engineered to meet stringent military and aerospace specifications, including compliance with MIL-STD-202 and MIL-DTL-38999 standards. Its robust construction, combined with a low VSWR (typically under 1.1:1 across the operating band), ensures reliable performance in both field and controlled environments, making it a trusted choice for engineers and technicians requiring uncompromising signal integrity in high-frequency applications.

**Pros and Cons of buying a Pasternack PE9804 WR-90 SMA Female Waveguide to Coax Adapter (8.2 12.4 GHz)**

### **Pros**

1. **High-Frequency Performance** The adapter is designed for use in the 8.2 12.4 GHz range, making it suitable for applications such as satellite communications, radar systems, and microwave links where signal integrity is critical.

2. **WR-90 Waveguide Compatibility** WR-90 waveguide is a standard in high-frequency applications, ensuring compatibility with other waveguide-based equipment in this frequency band.

3. **SMA Female Connector** The SMA female connector provides a robust, reliable connection for coax cables, reducing signal loss and improving stability compared to some lower-quality connectors.

4. **Durable Construction** Pasternack is a reputable manufacturer known for producing high-quality RF components with precise machining and reliable materials, which helps ensure long-term performance.

5. **Low Insertion Loss** Properly designed waveguide-to-coax adapters minimize signal degradation, which is essential for maintaining signal strength in high-frequency applications.

6. **Versatility** The adapter can be used in various systems where a transition between waveguide and coax is required, such as test setups, antennas, or transmission lines.

7. **Good Return Loss** A well-engineered adapter should exhibit low return loss, preventing signal reflections that could degrade performance in sensitive systems.

### **Cons**

1. **Cost** High-quality RF components, especially those designed for waveguide transitions, can be more expensive than standard coax connectors or adapters. This may be a consideration for budget-conscious buyers.

2. **Installation Complexity** Waveguide systems often require precise alignment and mounting, which may demand additional hardware (such as flanges or mounting brackets) that is not included with the adapter.

3. **Limited Frequency Range** While the 8.2 12.4 GHz range is useful, it may not be suitable for applications requiring broader bandwidth or lower/higher frequency operation.

4. **Potential for Misalignment** If not properly installed, the adapter could introduce signal loss or reflections due to improper mating between the waveguide and coax.

5. **Size and Weight** Waveguide components are bulkier than coax connectors, which may be a limitation in space-constrained applications.

6. **Compatibility Issues** Ensure that the SMA female connector matches the gender and size of your coax cable (e.g., standard SMA vs. reverse polarity or different impedance).

### **Conclusion**

The Pasternack PE9804 WR-90 SMA Female Waveguide to Coax Adapter is a well-engineered solution for applications requiring a reliable transition between waveguide and coax in the 8.2 12.4 GHz range. Its high performance, durability, and compatibility with standard RF systems make it a strong choice for professional and industrial use. However, its cost and physical size may be drawbacks for smaller-scale or budget-limited projects.

### **Recommendation**

If you require a high-performance adapter for a waveguide-to-coax transition in the specified frequency range and can justify the investment, this Pasternack adapter is an excellent choice. For lower-cost or simpler applications, consider whether a lower-frequency or lower-quality adapter would suffice. Always verify compatibility with your specific system and ensure proper installation to maximize performance. If you are working in a sensitive environment where signal integrity is paramount, the reliability of Pasternack s components makes it a worthwhile investment.

Details:

Brand New Pasternack PE9804 - WR-90 Square Type Flange to SMA Female Waveguide Coax Adapter, 8.2-12.4 GHz. Please see pictures for details and full specification.

part #: pe9804 prices

• $395.00-$399.99

specifications coaxcabl:

• brand: Pasternack
• mpn: Pe9804
• type: Adapter
• connector b: Wr-90
• connector a: Sma/female
• country of origin: United States

payments coaxcabl:

• credit card: Visa
• wallet: Paypal
• other

returns coaxcabl:

• method: Money back
• paid by: Seller
• time: 30 Days
• policy: Returns Accepted

seller coaxcabl:

• rating: 100.0%
• city: Solon, Ohio
• # reviews: 644

general coaxcabl:

• Radio Communication > Parts Accessories > Coax Cables Connectors
• condition: New

shipping coaxcabl:

• service: Standard
• cost: $0.00
• class: Standard
• transit: 2-6 Days
• type: Fixed

offer coaxcabl:

• availability: In Stock
• best offers: True
• options: Ship-to-home
• sold: 0
• quantity: 4
• started: March 24, 2026

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