April 24, 2025

HDMI 2.1 supports 48Gbps bandwidth (UHBR certified cable + 16b/18b encoding is required); RJ45 Cat8 cable requires Fluke DSX-8000 to verify impedance (95-105Ω) for 40Gbps transmission; coaxial RG-6U uses fluoroplastic dielectric (dielectric constant 1.8), with attenuation ≤1.8dB/100m@3GHz. HDMI Audio-Video Direct Connection Last year while debugging the Ku-band transponder of AsiaSat 7, I encountered a bizarre […]

In the dynamic sphere of Microwave Engineering, the manufacturers of SATCOM antennas play a pivotal role in shaping the future of high-speed and secure communications. As the demand for enhanced data transmission capabilities surges across the globe, the contributions of these companies are paramount in driving technological advancements. The SATCOM industry is currently at the

Industrial microwaves can use metal because they are designed with variable frequencies and enhanced shielding to prevent arcing and ensure even heating. Design and Function Tailored Microwave Frequencies Industrial microwaves often feature adjustable or multiple frequency settings, which serves to manage how microwave energy interacts with metal objects . At standard home microwaves, the frequency

Smart antennas are divided into switch beams (such as 6-beam switching, response <5ms) and adaptive arrays (MIMO technology, beamforming gain up to 20dB). The former presets a fixed coverage direction, while the latter tracks users in real time and dynamically adjusts the phase, which can increase the capacity of 5G systems by more than 30%.

Dual antennas can work together (such as MIMO or relay), and need to be in the same frequency band (e.g. 2.4GHz±50MHz), with a spacing ≥ half a wavelength (6.25cm at 2.4GHz). Orthogonal polarization or isolator (isolation>20dB) to prevent interference, phase shifter to adjust the phase (within ±30°), combiner needs 50Ω impedance matching to ensure signal

Bigger antennas offer higher gain and directivity, enhancing signal strength and precision in target signal capture. Relationship Between Wavelength and Antenna Size An antenna’s size is directly linked to the wavelength of the signals it is designed to receive or emit. The rule of thumb in antenna design is that the effective size of an

The parabolic antenna offers the highest gain, typically exceeding 30 dB, focusing signals into a narrow beam. Directional Antennas and Gain Directional antennas are those that focus energy in directions designed to enhance the signal power and reception quality, and, as a result, significantly increase the antenna gain. The advantage of using this type of

No, coaxial cables and antennas are not the same. Coaxials transmit signals via cable, while antennas emit signals through air. Common Uses of Coaxial Cables in Telecommunications Coaxial cables are indispensable in many telecommunications applications because they can move immense amounts of data with minimal interference or loss. They play a crucial role in connection

Satellite antennas vary in size from 45 cm for personal use to 30 meters for ground stations. Small Satellite Antennas for Personal Use One of the most widely used applications of satellite technology is satellite dishes that are used for satellite television and broadband satellite internet. Over time, small satellite antennas have seen considerable advancements.

The best antenna for satellite communication is a phased array antenna due to its rapid beam steering and wide frequency range capabilities. Parabolic Reflectors Parabolic reflectors are one of the most important components of satellite communications, mainly because they allow focusing radio waves into a narrow beam. These antennas use an appropriately shaped rounded reflective