60 GHz RF Communication Units for Outside Broadcast
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Solution Overview
Problem
Conventional RF communication systems face challenges in achieving long-range, high-data-rate point-to-point transmission at 60 GHz frequencies for outside broadcasting applications, particularly with bulky equipment and limited performance due to atmospheric absorption and interference, especially when transmitting uncompressed HD video signals.
Innovation Solution
A point-to-point RF communication system using communication units with antennas coupled to waveguide diplexers and RF transceiver circuit boards, allowing for efficient transmission and reception of video data at rates greater than 1 gigabit/second over distances greater than 1 km, utilizing the same polarization and frequency range of 50 GHz to 65 GHz with sufficient isolation between transmit and receive waveguides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional transmitter modules and receiver modules using discrete waveguide connections are used at 60 GHz, then electromagnetic separation requirements are met, but the equipment becomes bulky and cumbersome
Solution Approach 1:
The patent integrates the transmitter and receiver modules into a single communication unit, combining previously separate discrete waveguide connections into an integrated architecture. This merging reduces the overall equipment size and weight while maintaining electromagnetic separation through careful internal design of the waveguide paths and isolation structures within the unified module.
2Object-affected harmful factors
If transmissions are performed at 60 GHz frequency band, then strong atmospheric absorption limits interference from other signals, but achieving desired transmission distances becomes difficult
Solution Approach 1:
The patent employs advanced modulation schemes and signal processing techniques that adapt to the atmospheric absorption characteristics of the 60 GHz band. By optimizing transmission parameters such as power levels, modulation depth, and error correction coding, the system achieves reliable communication over distances greater than 1 km despite the frequency-dependent atmospheric attenuation.
3Loss of information
If uncompressed HD video signals are transmitted at high data rates, then video quality is maintained, but transmission difficulties increase due to atmospheric absorption
Solution Approach 1:
The communication system implements feedback mechanisms including automatic gain control, adaptive modulation, and error detection/correction protocols. These feedback loops continuously monitor the transmission quality and adjust system parameters to maintain reliable transmission of uncompressed HD video signals over atmospheric paths, compensating for signal degradation while preserving video quality.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enables reliable, high-data-rate communication over long distances with compact and lightweight equipment, overcoming the limitations of conventional systems by ensuring effective transmission and reception of HD video signals without interference, suitable for outside broadcast applications.
Implementation Method 1
each of the one or more communication units comprises an antenna used for both receiving and transmitting, the antenna coupled to an arrangement comprising a waveguide diplexer
Implementation Method 2
the arrangement having sufficient isolation between its transmit and receive waveguides to allow transmitting and receiving at said data rates to take place point-to-point
Implementation Method 3
the one or more communication units are adapted to transmit video data obtained by their respective television camera to the further communication unit at RF frequencies greater than or equal to 50 GHz
Implementation Method 4
transmissions in a frequency band of 57 to 64 GHz located around 60GHz undergo strong atmospheric absorption
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A point-to-point radio frequency, RF, communication system (1); e.g. for outside broadcast, comprising: one or more communication units (6) coupled to respective television cameras(4) and displays(5); and a further communication unit (8); wherein the units (6) transmit video data to the further communication unit (8) at frequencies greater than or equal to 50 GHz and at data rates greater than or equal to 1 gigabit/second; and the units (6) receive video data transmitted by the further communication unit (8) at frequencies greater than or equal to 50 GHz and at data rates 250 megabits/second;the units (6) each comprise an antenna (12) used for both receiving and transmitting coupled to an arrangement comprising a waveguide diplexer (34) and an RF transceiver circuit board (32) having sufficient transmit/receive isolation for the transmitting and receiving to take place point-to-point at distances greater than or equal to km. 1