DRA-Ka045 is K-band & Ka-band double reflector antenna (Cassegrain antenna) designed for transmitting radio relay stations (RRS), MVDS / MMDS broadcasting systems. Antenna is performed as a single block with flange for transmitter or receiver connecting. Using one or several radio relay links allows to transfer the broadcast signal from/to remote TV (cable) operators or from/to remote head-end without wires. Thus, the current transmission method is especially useful in difficult terrain in the service area where cable laying is impossible.
DRA-Ka045 K/Ka-band double reflector directional antenna is a compact and efficient Cassegrain antenna designed for MVDS/MMDS broadcasting systems and professional radio relay infrastructures. Operating across the 25-40 GHz frequency range (18-40 GHz by order), it delivers 39 dBi high gain, narrow 2° beamwidth in both horizontal and vertical planes and cross-polarization isolation of 25 dB, ensuring high-quality signal transmission and reception.
The DRA-Ka045 antenna is engineered as a single block with a professional flange interface, simplifying integration with transmitters and receivers. Thanks to its double reflector design, it provides excellent efficiency, low side-lobe levels (-12 dB) and minimal signal distortion, making it ideal for directional long-range communication links.
With a rugged canvas-covered casing, the DRA-Ka045 antenna withstands harsh outdoor environments, operating at temperatures from -50 °C to +80 °C with 100% humidity resistance. Compact dimensions of 480 × 480 × 190 mm and lightweight 5.4 kg design simplify installation on vertical pipes with a diameter of 50-100 mm, while WR-28 or C-320 waveguide options ensure broad compatibility with professional broadcasting infrastructures.
✅ 39 dBi high gain
The DRA-Ka045 directional antenna delivers reliable high gain of 39 dBi, ensuring stable long-distance transmission across professional broadcasting infrastructures.
✅ Narrow 2° beamwidth
With sharp 2° beams in both planes, the DRA-Ka045 Cassegrain antenna provides precise directional coverage and minimizes interference.
✅ Linear and circular polarization options
The DRA-Ka045 antenna supports both linear and circular polarization, ensuring maximum compatibility with diverse DVB standards.
✅ Compact weatherproof design
With its small form factor and rugged canvas casing, the DRA-Ka045 antenna provides durable and reliable outdoor operation.
🛠️ Whether you need a Ka-band directional antenna with 39 dBi gain, a K-band double reflector antenna with 2° beamwidth, or a Cassegrain antenna for MVDS head-end broadcasting stations, the DRA-Ka045 offers performance, precision and efficiency.
🛒 The DRA-Ka045 directional antenna is available to order now – ready for integration into broadcasting stations, repeater hubs, interactive microwave infrastructures and DVB networks.
📌 Key features
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Wide frequency range 25-40 GHz
The DRA-Ka045 K/Ka-band directional antenna operates in the wide 25-40 GHz range, which provides excellent flexibility for DVB broadcasting and microwave transmission. By request, it can be tuned for 18-40 GHz, making it adaptable to specific operator requirements.
The DRA-Ka045 double reflector antenna delivers strong 39 dBi gain, ensuring long-distance signal transmission without degradation. This makes it an ideal solution for MVDS/MMDS networks and professional DVB infrastructures that require high performance.
With a 2° beam in both horizontal and vertical planes, the DRA-Ka045 Cassegrain antenna focuses energy with high precision. This narrow beamwidth improves efficiency, minimizes interference and guarantees clean directional coverage.
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Cassegrain double reflector design
The advanced double reflector design of the DRA-Ka045 antenna ensures maximum signal efficiency. This reduces losses, enhances stability and delivers reliable directional broadcasting performance.
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Cross-polarization isolation ≥25 dB
The DRA-Ka045 antenna maintains excellent cross-polarization isolation of 25 dB. This minimizes interference and ensures consistent signal quality in dense communication environments.
The DRA-Ka045 directional antenna is optimized for efficient power transfer with minimal reflection. This improves system stability and guarantees higher broadcasting efficiency.
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Side-lobe suppression -12 dB
With side-lobe suppression of -12 dB, the DRA-Ka045 antenna eliminates unwanted radiation. This feature provides cleaner transmission and reduces interference with nearby systems.
The DRA-Ka045 Cassegrain antenna supports both linear and circular polarization, ensuring compatibility with a wide range of DVB-S2, DVB-T2 and microwave infrastructures. This makes it highly versatile for professional use.
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Compact lightweight construction
At just 5.4 kg and 480 × 480 mm in size, the DRA-Ka045 antenna is compact and easy to mount. This reduces installation complexity while maintaining professional-grade performance.
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Durable weatherproof casing
The DRA-Ka045 directional antenna is protected with a rugged canvas casing. This design guarantees resistance to dust, humidity and temperature extremes, making it reliable for outdoor broadcasting installations.
⚙️ Main functions
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Transmission of K/Ka-band signals
The DRA-Ka045 directional antenna transmits high-frequency signals with precision across K-band and Ka-band. This ensures reliable broadcasting for DVB infrastructures and point-to-point links.
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Reception of K/Ka-band signals
The DRA-Ka045 Cassegrain antenna also functions as a receiver, capturing signals with high accuracy. This dual functionality makes it a cost-effective solution for professional broadcasting infrastructures.
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Head-end broadcasting integration
The DRA-Ka045 antenna integrates seamlessly into head-end stations, providing stable upstream and downstream connectivity. This supports efficient network operation for broadcasters.
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Repeater station deployment
Designed for high-gain directional use, the DRA-Ka045 antenna extends coverage in repeater stations. This ensures that signals remain strong and reliable across large service areas.
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Support for interactive microwave systems
The DRA-Ka045 antenna is suitable for interactive microwave infrastructures, where reliable two-way communication is required. This makes it valuable for advanced broadcasting applications.
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MVDS/MMDS broadcasting integration
The DRA-Ka045 directional antenna is widely used in MVDS and MMDS infrastructures, ensuring large-area coverage. Its efficiency improves broadcasting stability in professional networks.
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Point-to-point directional communication
With 39 dBi gain and narrow 2° beamwidth, the DRA-Ka045 antenna is ideal for long-distance point-to-point broadcasting. This guarantees minimal interference and maximum accuracy.
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Telecommunication hub integration
The DRA-Ka045 Cassegrain antenna can be installed in telecom hubs to provide stable directional K/Ka-band performance. This supports flexible and high-capacity broadcasting services.
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Outdoor broadcasting installations
The DRA-Ka045 antenna is built to withstand extreme outdoor conditions, including wind, humidity and temperature variations. This guarantees long-term continuous service.
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Flexible flange compatibility
With WR-28 and C-320 flange interfaces, the DRA-Ka045 antenna ensures smooth integration into existing systems. This simplifies setup for broadcasters and system integrators.
🧩 Applications
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K-band broadcasting networks
The DRA-Ka045 directional antenna provides stable coverage for K-band DVB networks. Its high gain makes it suitable for professional long-range infrastructures.
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Ka-band broadcasting infrastructures
Supporting Ka-band DVB-S2 and DVB-T2 applications, the DRA-Ka045 Cassegrain antenna ensures reliable signal transmission. This provides flexibility for operators working in multiple bands.
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MVDS/MMDS broadcasting systems
The DRA-Ka045 antenna integrates into MVDS and MMDS systems, offering wide coverage and efficient signal distribution. This ensures service reliability across large territories.
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Repeater station installations
The DRA-Ka045 antenna retransmits broadcasting signals effectively, expanding coverage in areas where direct transmission is limited. This makes it ideal for difficult terrain.
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Broadcasting head-end stations
In head-end infrastructures, the DRA-Ka045 antenna ensures seamless integration for upstream and downstream communication. This improves network stability for broadcasters.
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Interactive microwave systems
The DRA-Ka045 Cassegrain antenna enables efficient two-way broadcasting in interactive microwave networks. This enhances connectivity and operational efficiency.
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Point-to-point broadcasting links
The DRA-Ka045 antenna is well-suited for long-distance point-to-point links thanks to its narrow beamwidth and high gain. This guarantees clean and focused signal delivery.
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Public broadcasting infrastructures
The DRA-Ka045 antenna supports regional and national DVB operators, ensuring stable coverage and consistent service delivery.
Built for outdoor operation, the DRA-Ka045 Cassegrain antenna provides reliable performance in telecom hubs. Its rugged casing ensures durability in all weather conditions.
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Professional DVB infrastructures
The DRA-Ka045 directional antenna integrates easily into DVB-S2, DVB-T2 and DVB-C infrastructures. This guarantees maximum compatibility and professional reliability.
💡 Why you should buy from us❓
- 1.5 years warranty
- 7 years after-sales support
- Remote support team of engineers
- Discount program for regular customers 🎁
💬 Contact Us
For additional details or assistance regarding the DRA-Ka045 K/Ka-band double reflector directional antenna, feel free to contact our team. We provide professional consultation and aftersales support to help with installation and setup, ensuring you get the most out of your broadcasting equipment.
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