Monolithic RF Connector-Antenna Assembly for mmWave Signal Loss
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Solution Overview
Problem
Existing connector-antenna assemblies face performance degradation due to parasitic inductances and capacitances at the junction between RF connectors and antennas, especially at high mmWave frequencies, leading to signal reflection and transmission losses, which are costly and time-consuming to assess and optimize.
Innovation Solution
A monolithic connector-antenna assembly is developed where the antenna is integrated with the RF connector housing, eliminating the need for mechanical connections and leveraging the physics of charge separation at high frequencies to minimize electrical shorts, thus eliminating the interface between the connector and antenna.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate RF connector and antenna components are used with mechanical connections, then manufacturing and assembly are simpler, but parasitic inductances and capacitances at the junction cause signal reflection and transmission losses at high frequencies
Solution Approach 1:
The patent merges the RF connector and antenna into a single monolithic integrated structure, eliminating the mechanical junction between separate components. This integration removes the parasitic inductances and capacitances that cause signal reflection and transmission losses, particularly at high mmWave frequencies, thereby improving signal transmission quality while accepting increased manufacturing complexity
2Reliability
If design optimizations are applied to minimize junction reflection losses, then signal transmission improves, but the effects are limited especially at high mmWave frequencies due to parasitic inductances and capacitances
Solution Approach 1:
By integrating the connector and antenna monolithically, the patent eliminates the junction interface where parasitic inductances and capacitances arise, thereby overcoming the limitations of conventional junction optimization techniques and achieving superior signal transmission quality at high mmWave frequencies with reduced energy loss
3Ease of manufacture
If monolithic integration of antenna into PCB circuitry is implemented for cost and space savings, then manufacturing cost and space are reduced, but electrical impedance continuity is compromised leading to increased reflection losses
Solution Approach 1:
The patent creates a monolithic integrated structure where the connector and antenna form a unified electrical pathway, ensuring continuous 50 ohm characteristic impedance throughout the signal path. This integration maintains electrical impedance continuity while achieving cost and space savings through simplified manufacturing, unlike separate component assemblies
4Reliability
If compensation techniques are employed to overcome parasitic inductances and capacitances, then signal transmission improves, but space and cost constraints limit the effectiveness of these techniques
Solution Approach 1:
By eliminating the mechanical junction through monolithic integration, the patent removes the source of parasitic inductances and capacitances, making compensation techniques unnecessary. This approach improves signal transmission quality without adding the space and cost burdens of complex compensation circuits or structures
Data Source
AI summary
An integrated connector-antenna assembly is provided, wherein an antenna is monolithically integrated with a radio frequency (RF) connector housing. The connector-antenna assembly may also include the RF signal element, wherein the connector center pin is monolithically integrated to the connector housing. Although part of the connector-antenna assembly, the connector housing and connector signal element still serve the connector function, which is essentially a channel for RF signal from the RF signal source to the antenna.