ANTENNA QY21106XL1D4

PERFORMANCES:

No of ele

L (mm)

G (dBi)

F/B (dB)

F/Sh (dBi)

F/Sv (dBi)

Hor (◦)

Ver (◦)

Temp (◦K)

G/T (dB)

Tlos

(K)

11

6000

15.11

40.94

21.05

15.92

34.0

36.6

221.3

-8.34

6.3

 

WORKING CONDITION:

Frequency for SWR=1,5 (MHz)

Z (Ώ)

at 144.100 MHz

SWR at 145.000 MHz

Lowest

Highest

Bandwidth

141.400

146.000

4.600

199.1

1.07:1

 

DIMENSIONS:

 

Ref

De1

De2

D1

D2

D3

D4

D5

All elements made of Al rods Ǿ6mm

The height of all rectangles is 500

All dimensions given in milimetres

Pos

0

200

340

421

733

1284

1967

2729

Length

1018

1014

870

952

956

932

915

896

 

DQ1

DQ2

DQ3

DQ4

 

 

 

 

Pos

3544

4374

5288

6000

 

 

 

 

Length

518

492

484

478

 

 

 

 

No boom correction included.

 

COMPARISON

TYPE OF

ANTENNA

SINGLE ANTENA

FOUR ANTENNAS IN H-STACK

L

(λ)    

GAIN

(dBd)

Z

(ohms)

VSWR

Bandwidth

E

(m)

H

(m)

Ga

(dBd)

Tlos

(K)

Ta

(K)

G/T

(dB)

QY21106XL1D4

2.88

12.96

199.1

1.07:1

4.00

3.28

18.93

6.3

220.6

-2.36

K1FO 13

2.89

12.94

24.7

1.38:1

3.64

3.39

18.88

4.6

239.2

-2.76

Y21110XL2

2.94

12.98

200.6

1.08:1

3.84

3.52

19.01

4.0

226.4

-2.39

M2 20 XPOL

2.97

13.11

200.1

1.20:1

3.64

3.64

19.09

6.3

241.7

-2.59

G0KSC 11 LFA

2.98

13.11

48.3

1.06:1

3.78

3.65

19.14

3.0

224.9

-2.23

UA9TC 11RS

2.98

13.09

50.9

1.10:1

3.66

3.37

19.01

5.0

223.0

-2.34

G0KSC 11OWL

3.00

13.16

49.8

1.42:1

3.69

3.44

19.09

7.7

224.6

-2.27

BVO-3WL

3.01

13.43

52.7

3.08:1

3.90

3.70

19.38

8.6

253.1

-2.50

G0KSC 11LFA3R

3.01

13.00

50.1

1.08:1

3.60

3.33

18.92

4.0

223.0

-2.41

YU7EF 11

3.04

13.07

49.0

1.62:1

3.56

3.30

18.87

4.7

222.6

-2.46

F9FT 16

3.06

12.64

20.8

1.37:1

3.54

3.26

18.63

6.0

241.3

-3.05

Z(ohms) - measured on 144.100 MHz

Bandwidth – VSWR measured on 145.000 MHz

Data taken from VE7BQH G/T table

 

DIAGRAMS (no loss included)

 

SWR DIAGRAMS (losses included)

 

 

STACKING

Horizontal distance (cm)

G

(dBi)

TA

(K)

G/T

(dB)

Vertical distance (cm)

G

(dBi)

TA

(K)

G/T

(dB)

100

 

 

 

100

16.23

221.3

-7.20

110

15.48

243.2

-8.36

110

16.38

217.2

-6.97

120

15.95

238.6

-7.81

120

16.51

215.5

-6.80

130

16.25

233.8

-7.42

130

16.62

215.4

-6.69

140

16.45

229.8

-7.15

140

16.72

215.9

-6.60

150

16.62

226.8

-6.92

150

16.82

215.6

-6.49

160

16.75

224.6

-6.74

160

16.92

215.0

-6.38

170

16.87

223.0

-6.59

170

17.02

215.0

-6.28

180

16.98

221.9

-6.46

180

17.10

215.4

-6.21

190

17.07

221.0

-6.35

190

17.19

216.0

-6.13

200

17.17

220.3

-6.24

200

17.27

216.7

-6.06

210

17.25

219.8

-6.15

210

17.35

217.2

-6.00

220

17.34

219.4

-6.05

220

17.44

217.6

-5.91

230

17.42

219.1

-5.96

230

17.52

217.7

-5.83

240

17.50

218.9

-5.88

240

17.60

217.4

-5.75

250

17.57

218.7

-5.80

250

17.68

217.0

-5.66

260

17.65

218.5

-5.72

260

17.76

216.4

-5.57

270

17.72

218.4

-5.65

270

17.83

216.0

-5.49

280

17.79

218.3

-5.58

280

17.91

215.7

-5.40

290

17.86

218.2

-5.51

290

17.98

215.6

-5.33

300

17.93

218.2

-5.43

300

18.04

215.9

-5.28

310

17.99

218.2

-5.37

310

18.10

216.4

-5.23

320

18.04

218.2

-5.32

320

18.15

217.2

-5.20

330

18.09

218.2

-5.28

330

18.20

218.2

-5.17

340

18.13

218.3

-5.24

340

18.23

219.4

-5.16

350

18.17

218.5

-5.20

350

18.26

220.7

-5.16

360

18.20

218.7

-5.17

360

18.29

222.0

-5.15

370

18.23

218.9

-5.15

370

18.31

223.1

-5.15

380

18.25

219.1

-5.13

380

18.32

224.2

-5.16

390

18.27

219.4

-5.12

 

 

 

 

400

18.29

219.6

-5.10

 

 

 

 

410

18.30

219.9

-5.10

 

 

 

 

420

18.31

220.1

-5.09

 

 

 

 

*The Table is presented without KF2YN convergence correction applied and serves only to show which distance can be used with good

result. and which distances should be avoided. In H-stack it can be slightly changed.

 

BEST DISTANCES FOR 4 ANTENNAS IN H-STACK

Horizontal

distance (cm)

Vertical distance (cm)

G

(dBi)

TA

(K)

G/T

(dB)

Tloss

(K)

Remark

3558

3313

21.01

220.8

-2.43

6.3

Per DL6WU formula

4000

3280

21.08

220.6

-2.36

6.3

For max G/T

3560

2760

20.69

215.7

-2.65

6.3

For lowest temperature

 

 

XPOL VERSION

Horizontal components: Same as above

Vertical components: Same as above. except:

PERFORMANCES:

Polarization

G (dBi)

F/B (dB)

F/Sh (dBi)

F/Sv (dBi)

Hor (◦)

Ver (◦)

Temp (◦K)

G/T (dB)

Tlos

(K)

Horizontal

15.11

40.94

21.05

15.92

34.0

36.6

221.3

-8.34

6.3

Vertical

15.16

43.29

19.82

21.47

36.2

33.8

221.7

-8.30

6.3

 

Horizontal polarisation patterns

 

 

Vertical polarisation patterns