IFIC-RFIC Compensation Circuit for Inter-Frequency Signal Loss
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Solution Overview
Problem
As electronic devices increase in size, the distance between inter frequency integrated circuits (IFIC) and radio frequency integrated circuits (RFIC) increases, leading to higher loss values of inter frequency signals due to longer transmission lines, which existing technologies fail to effectively compensate for.
Innovation Solution
The electronic device incorporates a plurality of RFICs connected to an IFIC with compensation units that amplify the IF signal to counteract losses, ensuring effective signal transmission even with increased transmission line lengths, utilizing in-phase/quadrature transmission lines and control signal lines for efficient signal processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the size of the electronic device increases, then the display area increases, but the distance between IFIC and RFIC increases leading to higher signal loss
Solution Approach 1:
The patent divides the signal transmission path into multiple segments by introducing intermediate amplification points. Compensation units are placed at strategic locations along the transmission line to amplify the IF signal in stages, rather than relying on a single end-point amplification. This segmented approach reduces the cumulative loss effect across the entire transmission distance.
Solution Approach 2:
The patent introduces compensation units as intermediary components between the IFIC and RFIC. These compensation units act as mediators that actively compensate for signal loss by providing amplification at intermediate points along the transmission line, thereby mitigating the harmful effect of long transmission distances caused by increased device size.
2Length of stationary object
If the distance between IFIC and RFIC increases, then the transmission line length increases, but the IF signal loss increases
Solution Approach 1:
The compensation units perform preliminary amplification of the IF signal at intermediate points along the transmission line, before the signal reaches the end of the transmission path. This preliminary action prevents the signal from degrading below usable levels during transmission, effectively counteracting the loss that would otherwise accumulate over the long transmission distance.
Solution Approach 2:
The system implements feedback mechanisms where the compensation units monitor and adjust their amplification levels based on the actual signal conditions. This feedback control ensures that the signal loss is dynamically compensated, maintaining optimal signal quality throughout the transmission path regardless of variations in transmission line length.
3Reliability
If compensation units are added to compensate for signal loss, then signal integrity is maintained, but device complexity increases
Solution Approach 1:
The patent merges the compensation units with existing components in the signal path, such as integrating them with the IFIC or RFIC modules. By combining multiple functions into unified components, the patent reduces the overall device complexity while still providing the necessary signal compensation. This merging approach avoids the need for completely separate, additional circuitry.
Solution Approach 2:
The compensation units are designed to perform multiple functions: they provide signal amplification, impedance matching, and potentially other signal conditioning functions. This multi-functionality reduces the need for separate dedicated components for each function, thereby maintaining signal integrity while minimizing the increase in device 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
This solution effectively compensates for IF signal losses between IFIC and RFIC, maintaining signal integrity and quality even as device size grows, by strategically arranging RFICs and IFICs with compensation units to manage signal amplification based on transmission line lengths.
Implementation Method 1
compensation units respectively connected to the plurality of RFICs or respectively positioned inside of the plurality of RFICs and configured to compensate for a loss of the IF signal occurring between the IFIC and the at least one RFIC
Data Source
AI summary
Disclosed is an electronic device including a plurality of radio frequency integrated circuits (RFICs) that delivers a digital signal, which is to be transmitted by a modem through an antenna configured to transmit and/or receive a radio frequency (RF) signal, in a form of the RF signal and to deliver the RF signal received from the antenna, in a direction of the modem, wherein the plurality of RFICs are at least partially connected to one another, an inter frequency integrated circuit (IFIC) connected to at least some RFICs among the plurality of RFICs and configured to receive the digital signal from the modem, to convert the digital signal to an inter frequency (IF) signal, to deliver the IF signal to the RFIC, to convert the RF signal delivered from the RFIC to the IF signal, and to deliver the IF signal to the modem, and a plurality of compensation units respectively connected to the plurality of RFICs or respectively positioned inside of the plurality of RFICs, the compensation units comprising circuitry configured to compensate for a loss of the IF signal occurring between the IFIC and the at least some RFICs or to compensate for a loss of the IF signal occurring between the plurality of RFICs.