Table 2 Design parameters of the CP planar slot array antenna.

From: A V-band high-gain gap waveguide-based slot array antenna with circular polarization

Section

Parameter

Value (mm)

Active slot

Length

Width

Offset

Spacing

2.60

0.73

0.55

2.67

Parasitic element

Length

Width

Depth

s

b3×h3

2.39

0.97

1.58

0.18

0.85×0.32

Coupling slot

Lc

wc

2.27

0.80

Ridge

wr

dr

b1×h1

b2×h2

1.03

1.39

0.47×0.05

0.47×0.10

Feed network

L1

L2

Lm×wm

Lt

bt×ht

1.63

0.69

1.33×1.26

0.60

1.28×0.36

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