Balun Slot Antenna Structure for Rounder Wi-Fi Coverage
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Solution Overview
Problem
Existing Wi-Fi antenna designs for customer premise equipment face challenges in achieving simultaneous horizontal and vertical coverage, with dipole solutions providing only horizontal coverage and IFA solutions requiring board space and poor horizontal plane pattern roundness.
Innovation Solution
A combined dipole and slot antenna design with a balun structure, featuring symmetrical branches and slots, enhances radiation in both horizontal and vertical directions by forming electric fields through slot coupling with the balun structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If an IFA antenna design is used, then board space is utilized, but antenna pattern roundness on horizontal plane is poor
Solution Approach 1:
The patent merges dipole and slot antenna structures to create a hybrid antenna that maintains compact form factor for board space utilization while the slot antenna component specifically enhances horizontal plane pattern roundness through its geometric configuration and current distribution characteristics.
2Adaptability or versatility
If a dual-branch design is used, then Wi-Fi operation is implemented, but space needs to be reserved on board
Solution Approach 1:
The patent integrates dipole and slot antenna functions into a single unified structure, eliminating the need for separate dual-branch antenna implementations. This merging reduces the overall board space required while maintaining full Wi-Fi operational capability through the combined radiation patterns of both antenna types.
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 design improves antenna pattern roundness and radiation performance, ensuring comprehensive coverage and efficient Wi-Fi operation in both horizontal and vertical planes.
Implementation Method 1
The first branch and the second branch serve as two branches of a dipole antenna... configured to feed the radiator
Implementation Method 2
The first slot is configured to form a first horizontally-radiated electric field by the first current and a current on the balun structure
Data Source
AI summary
An antenna includes a radiator and a balun structure. The radiator includes a first branch for a first current to flow through and a second branch for a second current to flow through. The first branch and the second branch are arranged on two opposite sides of the balun structure. A direction of the first current is at least partially opposite to that of the second current. The first branch is spaced from the balun structure by a first slot. The second branch is spaced from the balun structure by a second slot. The first slot is configured to form a first horizontally-radiated electric field by the first current and a current on the balun structure. The second slot is configured to form a second horizontally-radiated electric field by the second current and the current on the balun structure.