Xinlian Shortwave Antenna Systems: Custom-Designed for Heavy-Duty, High-Power Applications with Integrated Antenna Feed and Tower/Mast Solutions
Hebei Xinlian is a source manufacturer located in Guangchuan, Hebei—known as the “Hometown of China’s Tower Industry.” Leveraging the CNC machining and hot-dip galvanizing capabilities of our physical manufacturing facility, we provide professional-grade shortwave antenna systems covering the full 1–30 MHz frequency range. These systems are designed for complex applications such as high-power broadcasting, military monitoring, directional communications, and orthogonal diversity, and are delivered alongside matching steel support towers to achieve an integrated “electrical + structural” solution.
⚡ Why Choose Xinlian?
Heavy-Duty and High-Power Design: Specifically engineered for high-intensity transmission and long-term unattended stations, supporting high-power continuous carrier operation with exceptional wind and earthquake resistance.
Elimination of Interface Risks: From antenna elements and balun matching to structural load calculations for support towers, everything is completed by a single manufacturer, eliminating on-site finger-pointing over electrical-structural mismatches.
Stringent Factory Acceptance Testing: A Voltage Standing Wave Ratio (VSWR) of ≤1.5 at key frequency points is a mandatory requirement for shipment, and actual measured sweep curves are provided with each shipment.
📡 Core Product Matrix
1. Broadband Directional and Long-Range Communications
Soft-element Log-Periodic Antenna: Utilizes flexible copper-clad steel or equivalent material for the elements, offering excellent wind resistance and high fracture resistance. Wide-band coverage from 1–30 MHz, suitable for ultra-long-distance communications of 1,000–3,000 km.
Rotatable Log-Periodic Antenna: Equipped with a 360° rotation mechanism and a computer control system, it can adjust the antenna’s direction in real time based on changes in ionospheric height.
2. High-Power Vertical Polarization and Broadcasting
Shortwave Combined Vertical Cage Antenna: Features a large-diameter cage structure that effectively broadens the frequency band and reduces standing wave ratio. It provides vertical polarization with high elevation radiation, making it suitable for short-range high-power broadcasting and emergency coverage.
Biconical Vertical Cage Antenna: Featuring a dual-cone cage design at the top and bottom, it provides a wider operating frequency band and an extremely low standing wave ratio, specifically designed for demanding military applications or high-power stations.
3. Omnidirectional and Orthogonal Diversity Reception
3-Wire Inverted-V Antenna: A classic omnidirectional ground-wave radiation structure that is simple in design and quick to deploy, suitable for regional communications or emergency networks within a range of ≤600 km.
Shortwave Orthogonal Inverted-V Antenna: Two sets of antennas are mounted at a 90° angle to each other, achieving polarization and spatial diversity, which significantly improves the signal-to-noise ratio (SNR) in complex electromagnetic environments.
4. Classic High-Power Skywave Transmission
3-Wire / 4-Wire Horizontal Antenna: A classic high-gain, wide-sector directional broadcast antenna. Its structure is extremely robust and capable of withstanding the continuous output of ultra-high-power transmitters.
⚙️ Core Technical Specifications (Factory Acceptance Standards)
| Parameter | Specification |
|---|---|
Frequency Range | 1–30 MHz (supports precise customization by frequency band) |
Voltage Standing Wave Ratio (VSWR) | General-purpose systems ≤2.5; military/critical frequencies ≤1.5 |
Characteristic Impedance | 50 Ω (unbalanced, compatible with standard shortwave feedlines) |
Power Handling Capacity | Standard configuration ≥1 kW; supports customization for 3 kW, 5 kW, and higher power levels |
Polarization | Horizontal / Vertical / Orthogonal Dual Polarization |
Supporting Tower | Constructed of S355 / Q355 high-strength structural steel, fully hot-dip galvanized (equivalent to ISO 1461 standard), designed for wind loads of 0.35–0.75 kN/m², and operating temperatures ranging from -40°C to +60°C. |
💬 Frequently Asked Questions (FAQ)
Q1: What maximum transmission power do your shortwave antennas support?
A: Xinlian’s standard shortwave antennas typically support ≥1 kW
Q2: What is the difference between soft-element log-periodic antennas and hard-element ones?
A: Soft elements (flexible elements) can bend with the wind under extremely strong conditions without breaking easily. They are more adaptable to various environmental conditions and are lighter in weight, making them particularly suitable for installation on tall towers in areas prone to typhoons or for ultra-long-distance transmission.
Q3: Why do you offer “orthogonal inverted V antennas”?
A: Orthogonal inverted V antennas consist of two sets of antennas mounted at a 90° cross. They effectively counteract the polarization rotation caused by shortwave signal reflection off the ionosphere, significantly improving the stability of long-distance reception and the signal-to-noise ratio.
Q4: Can you provide support towers for high-power antennas?
A: Yes. We not only manufacture antennas but also support towers and masts. Large cage antennas or rotating antennas place extremely high demands on tower top loads and torque. We offer a one-stop solution ranging from structural stress analysis and detailed drawing development to the manufacturing of hot-dip galvanized steel towers.
📋 Request for Quote Guidelines
To ensure we can quickly provide accurate electrical and structural solutions, please include the following in your request for quote: antenna type (or target communication distance), operating frequency band, transmit power, polarization requirements (horizontal/vertical/orthogonal), as well as local wind load and corrosion resistance rating requirements.
