Table

     #

 El

G(dBi)

      Z

  L0

  L1

   L

EndL

   H

 AGT

CorG

Loss

ApEf

CQ21

  21

17.08

  81-j28

1.08

3.75

4.50

L3=4.00

6.08

0.98

17.17

.04

109

CQ45

  45

20.72

  88+j17

0.95

4.02

4.52

L5=4.00

6.00

0.97

20.85

.07

100

CQ77

  77

22.98

  99+j27

0.99

4.12

4.52

L7=4.06

5.91

0.98

23.07

.08

  89

CQ117

117

24.54

  97+j38

1.00

4.13

4.54

L9=4.13

5.86

0.98

24.63

.10

  78

CQ165

165

25.66

100+j49

0.96

4.18

4.56

L11=4.21

5.81

0.99

25.70

.11

  70

CQ221

221

26.55

  99+j46

0.95

4.17

4.57

L13=4.11

5.79

1.11

26.11

.13

  56

 

Explanation

 

#           the antenna number.

El          the number of radiating elements.

G(dBi)   the gain calculated by nec2.

Z           the calculated impedance.

L0         the length of elements in the central column in inches.

L1         the length of elements in the columns adjacent to L0.

L           the length of all the horizontal elements except L0, L1, and EndL.

EndL     the length of elements in the end columns.

H           the length of all the vertical wires.

AGT      average gain test.  A number near 1 means the simulation is likely to be accurate.

CorG     the corrected gain, taking G(dBi) and AGT into account.

Loss       the ohmic loss of the antenna in dB.

ApEf      the aperture efficiency of the antenna calculated from CorG and the area of the antenna.

 

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