Ku-band is cost-effective, supports smaller antennas, and offers 20-30x frequency reuse, boosting satellite capacity to 50Gbps. It also has better rain fade resistance than Ka-band, reducing signal loss and ensuring more stable connectivity in extreme weather. Spot Beam Coverage The signal strength of traditional wide beam technology is usually only 20 to 30 dBW (decibel […]
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Phased array antennas enhance satellite efficiency with over 80% bandwidth utilization, 3x frequency reuse, and 90% lower maintenance costs. They provide flexible, reliable connectivity for remote areas and moving vessels, supporting scalable SATCOM across commercial, public, and private sectors. Flexible Satellite Connectivity According to industry data, among the more than 4,000 satellites in orbit around
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Satellite frequency bands enable reliable global communications, reduce latency and support high-speed data transmission. They enhance Internet access in remote areas, improve navigation, and ensure real-time connectivity in key industries such as finance, transportation and defense. Global Data Transmission When transmitting data in tropical areas, the attenuation rate of Ka-band signals can reach more than
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L-Band is good at mobile navigation and IoT, S-Band dominates weather radar, C-Band is suitable for broadcasting, Ku-Band leads TV and aviation, Ka-Band supports the Internet, and V-Band creates high-capacity future networks. L-Band for Mobile The signal attenuation rate of L-Band remains within 3% in heavy rain, fog, snow or storms. According to the International
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The S Band plays a crucial role in space communications, providing reliable data transmission for satellites, weather monitoring, and scientific research. It is cost-effective, less affected by weather, and supports critical applications such as remote sensing, telecommunication, and emergency communications globally. Band Frequency Range The S Band normally lies within the range from 2 to
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The S-band frequency has a long detection distance, low signal attenuation and efficient communication capabilities. It is widely used in weather radar, monitoring systems, Wi-Fi, IoT devices, smart homes and other fields, providing stable, low-power connections and improving the performance and reliability of equipment. Long-Range Detection Usual detection ranges for S-band usages reach 300 to
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Evanescent modes in waveguides are non-propagating modes that decay exponentially with distance. For instance, in a waveguide with a TE11\text{TE}_{11}TE11 cutoff at 2 GHz, frequencies below this value (e.g., 1.5 GHz) generate evanescent modes. Mode Cutoff Frequencies for instance, a waveguide with a radius of 4 cm. The cutoff frequency for the TE11\text{TE}_{11}TE11 mode, the
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Evanescent modes in waveguides occur when the frequency is below the cut-off, causing exponential decay of fields. For instance, at 2 GHz in a 10 cm waveguide, field strength drops 95% within 8 mm. They’re used in sensors, where penetration depth is ~100 nm for detecting molecular interactions. Definition In a waveguide 10 cm wide
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Understanding RF Bands and Frequencies Radio Frequency (RF) bands refer to the range of electromagnetic frequencies used for transmitting data wirelessly. This spectrum is crucial in various communication technologies, including radio, television, cell phones, and wireless networks. The RF spectrum is measured in hertz (Hz), and it spans from very low frequencies in the kilohertz
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Radio waves (3 kHz–300 GHz) and microwaves (300 MHz–300 GHz) share an electromagnetic nature, traveling at 300,000 km/s. Both transmit data; FM radio uses 88–108 MHz for audio over 50–100 km, while Wi-Fi at 2.4 GHz delivers speeds up to 1.2 Gbps within 30 meters. Electromagnetic Nature Radio waves and microwaves are both parts of
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Dolph Microwave warrants our products to be free from defective material and workmanship for a period of one year from the date of delivery. All defective parts will be replaced and repair work required by normal use will be performed, without charge, within this one year period. This warranty shall be exclusive and in lieu of all other warranties expressed or implied.
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