VICTS Antenna RGW Structure Low-Loss Feeding
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Solution Overview
Problem
Traditional antennas face challenges such as high loss, sensitivity to size and material, complexity in high-frequency designs, large size, high cost, and limited power capacity, especially in wireless communication and radar systems.
Innovation Solution
A VICTS antenna based on an RGW structure, comprising an RGW feeding layer with a power splitter and dielectric substrate, and a radiation layer of CTS arrays, allowing for adjustable pencil beams and high directivity, using aluminum metal base materials and isolating posts for improved radiation efficiency and low profile design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If microstrip antenna is used, then manufacturing ease and low cost are improved, but loss increases significantly at high frequency
Solution Approach 1:
The antenna is divided into two distinct layers: a waveguide feeding layer for low-loss signal distribution and a microstrip radiation layer for easy manufacturing and radiation. This segmentation allows each layer to optimize its function independently, resolving the contradiction between manufacturing ease and low loss.
Solution Approach 2:
A dielectric substrate is introduced as an intermediary between the waveguide feeding layer and the microstrip radiation layer. This dielectric substrate enables efficient coupling between the two layers while maintaining the advantages of both structures, allowing signal transition with minimal loss.
2Loss of energy
If waveguide slot antenna is used, then loss is reduced and power capacity is increased, but design complexity and processing accuracy requirements increase at high frequency
Solution Approach 1:
The antenna structure is segmented into a waveguide feeding layer for low-loss transmission and a microstrip radiation layer for simplified design and manufacturing. This segmentation reduces the overall design complexity while maintaining low loss characteristics.
Solution Approach 2:
The invention uses a simplified microstrip radiation layer that copies the essential radiation function from complex waveguide slot antennas, achieving similar performance with much reduced design and processing complexity.
3Measurement precision
If parabolic antenna is used, then directivity is improved, but size and weight increase
Solution Approach 1:
The invention transitions from the traditional two-dimensional parabolic reflector to a three-dimensional layered structure with waveguide feeding and microstrip radiation layers. This dimensional change enables compact size while maintaining high directivity through the vertical stacking of functional layers.
Solution Approach 2:
The microstrip radiation layer is effectively nested within the waveguide feeding structure, with the dielectric substrate coupling the two layers. This nested configuration achieves high directivity in a compact form factor, eliminating the need for large parabolic reflectors.
4Adaptability or versatility
If active phased array antenna is used, then beam scanning capability is improved, but loss and cost increase
Solution Approach 1:
The invention introduces a rotatable microstrip radiation layer that can physically rotate to change beam direction, providing dynamic beam scanning capability. This mechanical rotation approach achieves adaptability without the high loss and cost associated with electronic phased array components.
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 VICTS antenna achieves low loss, wide frequency band operation, high directivity, and low cost with adjustable beam scanning, concentrated energy, and high power handling, overcoming size sensitivity and complexity issues of traditional antennas.
Implementation Method 1
a dielectric substrate for slow wave design
Implementation Method 2
the RGW power splitter comprises a feeding network and a waveguide feeding port, through which signals are input into the feeding network
Implementation Method 3
the radiation layer is composed of a plurality of CTS arrays... the radiation layer is configured to rotate, wherein, a beam deviates from the Z-axis direction to realize the adjustable pencil beam
Data Source
AI summary
The present application discloses a VICTS antenna based on an RGW structure, comprising an RGW feeding layer and a radiation layer arranged in sequence, wherein the RGW feeding layer comprises an RGW power splitter and a dielectric substrate for slow wave design, and the RGW power splitter is arranged under the dielectric substrate, wherein a power splitting network cover plate is arranged between the RGW feeding layer and the radiation layer, wherein the RGW power splitter comprises a feeding network and a waveguide feeding port, through which signals are input into the feeding network; the radiation layer is composed of a plurality of CTS arrays. During signal transmission, the signals are input into the feeding network through the waveguide port, and then the signals are fed into each CTS array by the feeding network; the radiation layer is configured to rotate.