Single Beam Antenna for Simultaneous TV and Data Reception
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Solution Overview
Problem
Existing systems for providing live television and data services to mobile platforms, such as aircraft, are costly and have limited capacity, making it difficult to support multiple users requesting different channels or services simultaneously, and are not easily scalable to meet the demands of the traveling public.
Innovation Solution
A method and apparatus that utilize a single beam antenna aperture for both receiving live television signals and data signals, with RF converters to manage different polarizations, allowing simultaneous reception and transmission of DBS and data services using co-located satellites, enabling efficient and scalable service delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate antennas are used for live television and data services, then reception reliability is improved, but device complexity and cost increase
Solution Approach 1:
The patent applies universality by enabling a single beam antenna to perform multiple functions: receiving both live television signals and data signals simultaneously. The antenna is designed to handle different signal types (DBS and FSS) through polarization separation, eliminating the need for separate antennas for each service type while maintaining reception reliability.
Solution Approach 2:
The patent applies segmentation by dividing the received signal stream into different polarization components. The signal processing system separates circularly polarized signals (for TV) from linearly polarized signals (for data) using polarization-selective receivers, allowing simultaneous processing of multiple signal types through a single antenna aperture.
2Productivity
If multiple antennas are deployed for simultaneous TV and data services, then service capacity is improved, but ease of operation and scalability worsen
Solution Approach 1:
The system enables a single antenna to provide multiple services (live TV and data) simultaneously through polarization multiplexing. This universal approach increases service capacity while simplifying operation, as the system automatically manages signal separation without requiring manual configuration or multiple antenna installations.
3Adaptability or versatility
If polarization conversion is implemented in the signal path, then signal compatibility is improved, but device complexity increases
Solution Approach 1:
The patent introduces polarization conversion as an intermediary mechanism in the signal path. A polarization converter transforms signals between circular and linear polarization states as needed, enabling compatibility between different satellite service types while the system manages the conversion process automatically without adding significant operational complexity.
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
Enables simultaneous live television and data reception on mobile platforms using a single beam receive antenna and data transmission using a single beam transmit antenna, improving capacity and reducing costs by allowing multiple users to access desired programming and services independently without overwhelming the system.
Implementation Method 1
A single beam receive antenna aperture receives first RF signals having a first polarization and second RF signals having a second polarization
Data Source
AI summary
A method and apparatus are provided for simultaneously receiving DBS and data signals on a mobile platform using a single beam receive antenna aperture and transmitting data signals from a mobile platform using the single beam transmit antenna aperture. A single beam receive antenna aperture receives first RF signals having a first polarization and second RF signals having a second polarization, the single beam receive antenna aperture outputting output signals having the first polarization. A first RF converter down-converts the output signals to first down-converted signals having the first polarization. A second RF converter down-converts the output signals to second down-converted signals having the second polarization. The first RF signals suitably include DBS signals, and the second RF signals suitably include data services signals.