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 2):
The waveguide slotted array antenna according to  claim 1 , wherein the feed layer comprises ( n 2 1 ) 2 H-shaped single ridge waveguide power division networks, two rectangular waveguide-single ridge waveguide converters and an E-plane waveguide power divider,\n wherein each H-shaped single ridge waveguide power division network is provided with an input terminal and four output terminals, \n wherein each rectangular waveguide-single ridge waveguide converter is provided with a rectangular waveguide input terminal and a single ridge waveguide output terminal, \n wherein the \n ( n 2 1 ) 2 H-shaped single ridge waveguide power division networks are evenly distributed to form a first-level feed network array including n 2 1 rows and n/2 1  columns, and the H-shaped single ridge waveguide power division networks in every two rows and two columns of the first-level feed network array form a first-level H-shaped single ridge waveguide power division network unit, and the first-level feed network array includes ( n 2 1 ) 2 4 first-level H-shaped single ridge waveguide power division network units; the input terminals of the four H-shaped single ridge waveguide power division networks in each first-level H-shaped single ridge waveguide power division network unit are connected through one H-shaped single ridge waveguide power division network,\n wherein the H-shaped single ridge waveguide power division networks through which the input terminals of the four H-shaped single ridge waveguide power division networks in each of the \n ( n 2 1 ) 2 4 first-level H-shaped single ridge waveguide power division network units are connected form a second-level feed network array including n 2 2 rows and n 2 2 columns, the H-shaped single ridge waveguide power division networks in every two rows and two columns of the second-level feed network array form a second-level H-shaped single ridge waveguide power division network unit, the second-level feed network array includes ( n 2 1 ) 2 4 2 second-level H-shaped single ridge waveguide power division network units, and the input terminals of the four H-shaped single ridge waveguide power division networks in each second-level H-shaped single ridge waveguide power division network unit are connected through one H-shaped single ridge waveguide power division network,\n wherein, by this by analogy, a (k\u22121)th-level H-shaped single ridge waveguide power division network unit including only four H-shaped single ridge waveguide power division networks is finally formed, and the input terminals of the four H-shaped single ridge waveguide power division networks in the (k\u22121)th-level H-shaped single ridge waveguide power division network unit are also connected through one H-shaped single ridge waveguide power division network, \n wherein the single ridge waveguide output terminals of the two rectangular waveguide-single ridge waveguide converters are both connected with the input terminal of the H-shaped single ridge waveguide power division network through which the four H-shaped single ridge waveguide power division networks in the (k\u22121)th-level H-shaped single ridge waveguide power division network unit are connected, \n wherein the rectangular waveguide input terminals of the two rectangular waveguide-single ridge waveguide converters are both connected with the output terminal of the E-plane waveguide power divider, and the input terminal of the E-plane waveguide power divider serves as the input terminal of the array antenna, \n wherein the four output terminals of each H-shaped single ridge waveguide power division network in the first-level feed network array are provided with single ridge waveguide-rectangular waveguide converters respectively, and the n 2  single ridge waveguide-rectangular waveguide converters are connected with the n 2  input ports in the first radiation unit in a one-to-one correspondence mode.

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): 0.8057540515609275
- 35 USC 102 Novelty (BERT): 0.4958159825104535
- Combined Prediction Score: 0.7747602446558801
- Mean Citation Score: 202.65101
- Max Citation Score: 213.53748
- Similarity Product: 154.9381379998541

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