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    If you are interested in our work, do not hesitate to contact us, we will be happy to provide you with further information.








      info@rfspin.com

      Request Support

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        Broadband Antenna Solutions

        QRH300 Quad Ridged Horn Antenna | 300 MHz – 4.5 GHz

        with online calibration protocol and dataset

        The QRH300 is a dual-polarized broadband horn antenna operating from 300 MHz to 4.5 GHz, ideal for EMC testing and wideband measurements in large chambers. It features integrated spirit levels for easy alignment in both polarizations. Each antenna is individually calibrated in our anechoic chamber, with calibration data available electronically on our website.

        Frequency Range
        300 MHz – 4.5 GHz
        VSWR (avg.)
        1.4
        Gain
        2 – 15 dBi
        Impedance
        50 Ohm
        Connector
        N (female)
        Power (CW / Peak)
        700 W / 1100 W
        Polarization
        Dual Linear, Circular (with hybrid)
        Document Icon CST - Protected Model
        Document Icon 3D Simplified Model
        Document Icon Datasheet

        You can compare up to 4 antenna products.
        Select files to be sent by e-mail

        Choose Your Data & Documentation Level

        Select the level of measurement data and documentation that best fits your application.
        QRH300 ESSENTIAL
        Typical antenna data (PDF) with a calibration certificate including pass/fail results
        Professional Choice
        QRH300 PLUS
        Measured antenna data in digital and machine-readable formats with a calibration certificate
        QRH300 PLUS CERTIFIED
        Accredited laboratory calibration certificate with the complete PLUS-level data
        In Stock: 6 pcs
        Ships in 2 days

        Product Highlights

        Key Features

        • Suitable for EMC/EMI
        • Premium broadband antenna
        • Precision-tuned for optimal performance
        • Designed for versatile applications

        Performance & Versatility

        • Circular polarization (optional)
        • QR code to access Antenna Portal
        • Wide bandwidth and low return loss
        • High isolation values
        • Multiple mounting options

        Manufacturing & Technologies

        • AU Technology
        • SPM Technology
        • In-house production
        • High-grade aluminum alloy

        Product Parameters

        Product identification

        • Product Name QRH300
        • Product Category Quad Ridged Horn Antenna

        Electrical specifications

        • Frequency Range 300 MHz – 4.5 GHz
        • VSWR (max.) 2.2
        • VSWR (avg.) 1.4
        • Impedance 50 Ohm
        • Connector N (female)
        • Power (CW / Peak) 700 W / 1100 W
        • Antenna Factor 15 – 30 dB/m
        • Port Isolation -32 dB
        • Polarization Dual Linear, Circular (with hybrid)

        Physical specifications

        • Width 450 mm (17.717 in)
        • Height 570 mm (22.441 in)
        • Depth 450 mm (17.717 in)
        • Weight 9 kg (19.842 lb)

        Operating conditions

        • Rated Temperature Range 0°C – +50°C
        • Storage Temperature Range -20°C – +70°C

        Mounting flange

        • Mounting Universal antenna mount

        Mechanical Drawings

        Parameters and Performance

        Typical parameters

        VSWR

        QRH300 - VSWR

        Gain

        QRH300 - Gain

        Antenna Factor

        QRH300 - Antenna Factor

        Port Isolation

        QRH300 - Port Isolation

        Cross Polarization

        QRH300 - Cross Polarization

        Beamwidth

        Port A, E plane

        QRH300 - Port A, E plane

        Port A, H plane

        QRH300 - Port A, H plane

        Port B, E plane

        QRH300 - Port B, E plane

        Port B, H plane

        QRH300 - Port B, H plane

        Radiation Patterns

        Port A, 0.3 GHz

        QRH300 - Port A, 0.3 GHz

        Port B, 0.3 GHz

        QRH300 - Port B, 0.3 GHz

        Port A, 0.4 GHz

        QRH300 - Port A, 0.4 GHz

        Port B, 0.4 GHz

        QRH300 - Port B, 0.4 GHz

        Port A, 0.6 GHz

        QRH300 - Port A, 0.6 GHz

        Port B, 0.6 GHz

        QRH300 - Port B, 0.6 GHz

        Packaging and Accessories

        What's in a box

        • QRH300 Antenna
        • Factory calibration certificate
        • Full calibration report of each antenna
        • QR code accessing online portal
        • Calibration test dataset (available online)
        • Universal antenna mount

        Accessories

        • Standard mounting flange
        • Factory calibration report

        Custom services

        • Custom mounting solutions
        • Custom calibration data

        Other Similar Products

        DRH370
        Double Ridged Horn Antenna
        Custom design
        QR code
        EMC
        Frequency Range

        370 MHz – 6 GHz

        VSWR (avg.)

        1.2

        Gain

        3.5 – 16 dBi

        Impedance

        50 Ohm

        Connector

        N (female)

        Power (CW / Peak)

        600 W / 800 W

        Polarization

        Linear

        In Stock: 10+ pcs
        Ships in 2 days
        QRH400
        Quad Ridged Horn Antenna
        Circular polarization
        Custom design
        QR code
        Frequency Range

        400 MHz – 6 GHz

        VSWR (avg.)

        1.5

        Gain

        4 – 15 dBi

        Impedance

        50 Ohm

        Connector

        N (female)

        Power (CW / Peak)

        500 W / 700 W

        Polarization

        Dual Linear, Circular (with hybrid)

        In Stock: 2 pcs
        Ships in 2 days
        PAS02
        Antenna Stand
        In Stock: 1 pcs
        Ships in 2 days
        QRH300 ESSENTIAL
        Professional Choice
        QRH300 PLUS
        QRH300 PLUS CERTIFIED
        Typical antenna data (PDF) with a calibration certificate including pass/fail results
        Measured antenna data in digital and machine-readable formats with a calibration certificate
        Accredited laboratory calibration certificate with the complete PLUS-level data
        Data Level
        Typical data
        Measured data
        Measured data (PLUS level)
        Typical data
        Interactive charts of measured data with hover effects
        Interactive charts of measured data with hover effects
        Data Formats
        & Features
        PDF
        Excel, CSV, JSON, XML
        Excel, CSV, JSON, XML
        No data tables
        Data tables included
        Data tables included
        No analysis
        Comparison of typical vs measured
        Comparison of typical vs measured
        Email support (48h response time)
        Email support (24h response time)
        Email support (24h response time)
        Antenna Data & Certification in Full Detail