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Dolph Microwave Designs And Manufactures For Precision Waveguide Components, Earth Station Antennas And Sub-Assemblies For Wireless, Satellite, Aerospace, Defence And Scientific Research
What is the function of a waveguide coupler
A waveguide coupler transfers energy between waveguides, splitting or combining signals. For example, it can split a 100W input signal into two 50W outputs. It
What is waveguide corners, bends, and twists
Waveguide corners, bends, and twists adjust signal paths in confined spaces. For effective use, bends should have a radius at least 2-3 times the waveguide
How many holes can be there in a directional coupler
A directional coupler typically has four ports or “holes”: an input port, an output port, a coupled port, and an isolated port. These ports are
What is the difference between transmitting antenna and receiving antenna
A transmitting antenna converts electrical signals into electromagnetic waves, typically handling power levels from 10W to 50kW. A receiving antenna captures these waves and converts
What are the characteristics of a standard rectangular waveguide
A standard rectangular waveguide typically measures 22 mm wide and 10 mm high, supports TE10 mode with a cutoff frequency around 6.56 GHz, and is
Why the rectangular waveguide behaves as a high pass filter
A rectangular waveguide acts as a high pass filter due to its cutoff frequency, determined by its width. For a width of 2 cm, the
What is the most common reason for failure of coaxial cables
The most common cause of failure in coaxial cables is physical damage, such as bending beyond the recommended radius, leading to a 40% increase in
Why is it important to have low SWR when using coaxial cable feed line
Low SWR on a coaxial cable minimizes power loss and equipment stress, ensuring more of the transmitted 100 watts reaches the antenna, enhancing signal strength
How far can satellites transmit
Satellites can transmit over vast distances: LEO satellites cover about 1,500 km in diameter, MEO satellites up to 5,000 km, and GEO satellites can reach
Which type of light is used in optical fiber
Optical fibers primarily use LEDs for short ranges (850 nm) and laser diodes for long distances, operating at 1310 nm or 1550 nm to minimize
How does a dummy load work
When testing and calibrating electronic equipment, a dummy load is used that consumes electrical energy in a way similar to an actual or real expected
What are the different types of horn antennas
There are various horn antennas including sectoral (15dB gain), conical (10-20dB gain), pyramidal (15-25dB gain), and exponential horns, each suitable for different frequency ranges and
What is the difference between antenna booster and amplifier
Antenna boosters focus signal direction, increasing strength by up to 100x (20dB), while amplifiers boost power directly, enhancing signal strength by up to 1000x (70dB).
What is a waveguide horn antenna
The waveguide horn antenna is a widely used important antenna type in microwave and millimeter-wave communications. It combines the advantages of waveguides and horn antennas,
What is the impedance of a rectangular waveguide wave
The impedance of a rectangular waveguide wave varies by mode. For the common TE10 mode at 10 GHz, if the waveguide’s wide side is 2.286
Where should an antenna booster be placed
Place the antenna booster as close to the antenna as possible to minimize signal loss, ideally within one meter, as signal attenuation occurs at about
What are the limitations of horn antenna
Horn antennas have limitations including large size, manufacturing costs ranging from $2000 to $5000, and a signal attenuation rate of approximately 6dB/km at high frequencies.
What cable types are included in the TIA 568 structured cabling standards
The TIA 568 standards include Cat 3, Cat 5e, Cat 6, Cat 6a, Cat 7, Cat 8, Multimode Fiber (MMF), and Singlemode Fiber (SMF), supporting
What is a waveguide to Coax adapter
Waveguide to coax adapters are used to convert waveguide signals to coaxial cable signals, commonly used in the 0.5 GHz to 40 GHz frequency range,
How does a rotary coupling work
A rotary coupling allows fluid transfer between stationary and rotating parts, handling pressures up to 5000 PSI and speeds up to 300 RPM, ensuring seamless
What is the purpose of the waveguide to coax transition
The purpose of waveguide to coaxial conversion is to transmit high-frequency signals from the waveguide to the coaxial cable, ensuring lossless signal transmission. It is