Radio Wave Technologies
This modulation technique varies amplitude while keeping frequency constant.
What is AM (Amplitude Modulation)?
The fastest widely available mobile network today (speeds up to 10 Gbps).
What is 5G?
Fiber-optic cables transmit data using pulses of this.
What is light (or laser)?
Inventor of the telephone in 1876.
Who is Alexander Graham Bell?
This 2030s tech will integrate AI and holograms into communication.
What is 6G?
If a radio station broadcasts at 95.5 MHz, what part of the spectrum is it using?
What is the VHF (Very High Frequency) band?
Elon Musk’s satellite internet service providing global coverage.
What is Starlink?
Wireless alternative to Wi-Fi that uses LED light bulbs.
What is Li-Fi?
The mathematical transform converting signals to frequency domains.
What is Fourier Transform?
What 2009 mobile tech enabled HD streaming on smartphones?
What is 4G LTE?
The U.S. government’s 1969 project that became the foundation of the internet.
What is ARPANET?
This experimental encryption method uses quantum physics for unhackable communication.
What is QKD (Quantum Key Distribution)?
Low Earth Orbit satellites reduce this compared to traditional satellites.
What is latency?
Simultaneous amplitude/phase modulation on two carriers
Explain how QAM (Quadrature Amplitude Modulation) doubles data rates.?
What experimental tech could make fiber-optic cables obsolete by using air?
What is Li-Fi?
The bandwidth requirements of AM (1.5 kHz) vs. FM (200 kHz) signals.
What is trade off between higher fidelity and bandwidth?
AI-driven tools like ChatGPT rely on this language-processing technology.
What is NLP (Natural Language Processing)?
The theoretical "next internet" using quantum entanglement for instant data transfer.
What is the quantum internet?
The scientist whose 1895 wireless telegraphy work led to radio.
Who is Guglielmo Marconi?
While photonic chips enable terahertz-frequency operation crucial for 6G, they currently face challenges in component miniaturization compared to electronic chips.
What are the key tradeoffs between photonic and electronic chips for future 6G base station hardware?
AM's longer range and better penetration through atmospheric layers.
Why the aviation communications still rely on AM despite FM's advantages?
A solution for 6G to overcome terahertz wave limitations.
What is AI-driven beamforming + quantum repeaters?
Neuralink aims to achieve communication via this sci-fi-sounding interface.
What is a brain-computer interface (BCI)?
Higher frequencies enable more channels but require SNR tradeoffs
What is Shannon's Limit implications for 6G's terahertz bandwidth?
Quantum phenomenon allows "spooky action at a distance" for secure communication.
What is entanglement?