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The beamwidth of a quad-ridged horn antenna varies with frequency. At 1 GHz, it’s typically around 60°, narrowing to 15° at 18 GHz. Measure it by sweeping angles in an anechoic chamber and recording points where power drops to -3 dB. Adjusting flare angle also fine-tunes beamwidth. Frequency Dependency The beamwidth in a quad-ridged horn […]

The seven types of electromagnetic waves are radio (1mm-100km wavelengths), microwaves (1mm-1m), infrared (700nm-1mm), visible light (400-700nm), ultraviolet (10-400nm), X-rays (0.01-10nm), and gamma rays (<0.01nm). Each has unique uses, like Wi-Fi, remote controls, and medical imaging. Radio Waves Radio waves are a significant part of life, normally with frequencies below 300 GHz and wavelengths from

Physical obstructions, weather, and atmospheric layers disrupt radio waves significantly. For example, heavy rain can reduce signal strength by 20 dB per kilometer at 12 GHz. Solutions include using higher frequencies for clearer paths or placing antennas to avoid reflective surfaces and interference sources. Physical Obstructions Obstructions in the physical realm have a lot to

Couplers are used to distribute or combine signals in proportion (such as 10dB coupling), while waveguide combiners directly integrate multiple signals and are suitable for high-power scenarios. Both operate in a specific frequency band, such as 2-40GHz, but have different structures and functions. Coupler Basics During ChinaSat 9B’s orbital tests, engineers found EIRP suddenly dropped

Waveguide combiners efficiently merge multiple signals, enhancing output power for applications like radar and telecommunications. For example, combining four 20-watt signals can yield a total output of 80 watts, improving detection range in radar systems by 20%. They minimize crosstalk to below -50 dB, ensuring signal integrity and clarity across various high-frequency applications. Signal Combination

A double-ridged horn antenna is a broadband antenna typically operating between 1 GHz and 18 GHz, offering gains of 10 to 20 dBi. It features a unique ridged design that enhances bandwidth and reduces signal loss, making it ideal for applications like EMC testing and radar systems, where precise, long-range signal transmission is crucial. Design

The efficiency of a corrugated horn antenna is higher than that of a conventional horn due to its reduced back reflection, achieving levels of -20 dB compared to -10 dB in conventional designs. This allows for up to 99% of input power to be effectively radiated, enhancing performance in applications like satellite communications and radar

A load bank simulates real-world conditions by applying controlled loads to power systems, typically ranging from 100 kW to 2 MW, allowing detailed performance testing. In contrast, a dummy load absorbs power without measurement capabilities, usually rated at 50 to 1,000 watts, used primarily for RF applications. Load banks provide critical data, while dummy loads

An RF termination is a passive component designed to absorb excess signal power in RF systems, typically with an impedance of 50 ohms. For example, a 100-watt RF termination can manage signals up to 18 GHz while maintaining a return loss greater than 20 dB, ensuring only 1% of the signal reflects back for optimal

RF rotary joints enable signal transfer between stationary and rotating parts, typically handling frequencies from 1 GHz to 40 GHz with insertion loss under 0.5 dB. They ensure efficient communication in systems like radar and satellite, often supporting power up to 5 kW at lower frequencies. Transmission Path At the Ku-band, 12-18 GHz; an RF