PATENT CLAIM ANALYSIS

Application Number: 15964054
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-12
Patent Classification: ["343", "771000"]

Abstract:
A waveguide slotted array antenna comprises a feed layer and a radiation layer, wherein the feed layer is located below the radiation layer, and the radiation layer comprises a first radiation unit, a second radiation unit, a third radiation unit and a fourth radiation unit which are stacked from bottom to top; the first radiation unit comprises a first flat metal plate and a first radiation array arranged on the first flat metal plate, the second radiation unit comprises a second flat metal plate and a second radiation array arranged on the second flat metal plate, the third radiation unit comprises a third flat metal plate and a third radiation array arranged on the third flat metal plate, and the fourth radiation unit comprises a fourth flat metal plate and a fourth radiation array arranged on the fourth flat metal plate. The waveguide slotted array antenna has the advantages of low sidelobes and low cost while ensuring broad bands and high gains, and can be made small.

Claim (Index 4):
The waveguide slotted array antenna according to  claim 2 , wherein each single ridge waveguide-rectangular waveguide converter comprises a second rectangular metal block, a second rectangular cavity is formed in the second rectangular metal block, and a third E-plane step and a fourth E-plane step are arranged on the left side of the second rectangular cavity,\n wherein the height of the third E-plane step is smaller than that of the second rectangular cavity, and the third E-plane step is connected with the front side wall, the rear side wall and the left side wall of the second rectangular cavity, wherein the fourth E-plane step is located on the third E-plane step, the lower surface of the fourth E-plane step is connected with the upper surface of the third E-plane step in an attached mode, the width of the fourth E-plane step is smaller than that of the third E-plane step, and the fourth E-plane step is connected with the front side wall, the rear side wall and the left side wall of the second rectangular cavity, wherein a second H-plane step is arranged on the right side of the second rectangular cavity and connected with the right side wall and the rear side wall of the second rectangular cavity, and the height of the second H-plane step is equal to that of the second rectangular cavity, wherein a rectangular waveguide output port communicated with the second rectangular cavity is formed in the upper surface of the second rectangular metal block, wherein a single ridge waveguide input port is formed in the front side face of the second rectangular metal block and communicated with the second rectangular cavity, the height of the single ridge waveguide input port is equal to that of the second rectangular cavity, and the bottom surface of the single ridge waveguide input port is located on the same plane with the bottom surface of the second rectangular cavity, wherein a second ridge stair extending onto the bottom surface of the second rectangular cavity is arranged on the bottom surface of the single ridge waveguide input port and comprises a third ridge step and a fourth ridge step, and the height of the third ridge step is greater than that of the fourth ridge step and smaller than that of the second rectangular cavity.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 91.0
- Lexical Diversity: 3.35849
- Patent Class: 343.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['10018573', '15311128', '10937621', '12868440', '15591133']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8057355614997337
- 35 USC 102 Novelty (BERT): 0.4959366027099051
- Combined Prediction Score: 0.7747556656207509
- Mean Citation Score: 202.65101
- Max Citation Score: 213.53748
- Similarity Product: 154.72886709065438

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test