ANTENNA QY21305XL5D8
ANTENNA QY21305XL5D8
PERFORMANCES:
|
No of ele |
L (mm) |
G (dBi) |
F/B (dB) |
F/Sh (dB) |
F/Sv (dB) |
Hor (◦) |
Ver (◦) |
Temp (◦K) |
G/T (dB) |
Tlos (K) |
|
13 |
7365 |
15.78 |
23.32 |
26.87 |
17.61 |
32.4 |
33.0 |
221.4 |
-7.67 |
6.3 |
WORKING CONDITION:
|
Frequency for SWR=1,5 (MHz) |
Z (Ώ) at 144.100 MHz |
SWR at 145.000 MHz |
||
|
Lowest |
Highest |
Bandwidth |
||
|
141.100 |
145.900 |
4.800 |
200.0 |
1.05:1 |
DIMENSIONS:
|
|
Ref |
De1 |
De2 |
D1 |
D2 |
D3 |
DQ1 |
All elements made of Al rods Ǿ5 mm The height of all rectangles is 500 mm All dimensions given in milimetres |
|
Pos |
0 |
200 |
325 |
420 |
705 |
1066 |
1573 |
|
|
Length |
1020 |
1020 |
820 |
948 |
937 |
918 |
558 |
|
|
|
DQ2 |
DQ3 |
DQ4 |
DQ5 |
DQ6 |
DQ7 |
DQ8 |
|
|
Pos |
2216 |
3028 |
3883 |
4769 |
5664 |
6563 |
7365 |
|
|
Length |
532 |
516 |
502 |
490 |
482 |
472 |
458 |
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) |
|
|
QY21305XL5D7 |
3.54 |
13.62 |
200.0 |
1.05:1 |
4.02 |
3.88 |
19.56 |
6.0 |
220.0 |
-1.72 |
|
17LQD EKM#1 |
3.59 |
13.30 |
50.0 |
1.23:1 |
3.75 |
3.52 |
19.21 |
4.2 |
242.1 |
-2.48 |
|
17LQD EKM#2 |
3.59 |
13.39 |
50.0 |
1.25:1 |
3.75 |
3.50 |
19.32 |
4.5 |
227.5 |
-2.10 |
|
DL6WU 14 |
3.61 |
13.63 |
51.4 |
1.28:1 |
3.94 |
3.70 |
19.53 |
2.6 |
246.9 |
-2.24 |
|
DJ9BV 3.6 |
3.61 |
13.67 |
53.5 |
1.30:1 |
4.00 |
3.78 |
19.57 |
5.4 |
249.7 |
-2.25 |
|
K1FO 15 |
3.64 |
13.76 |
39.1 |
1.30:1 |
3.94 |
3.71 |
19.67 |
4.8 |
233.0 |
-1.85 |
|
DK7ZB 12 |
3.83 |
14.17 |
26.8 |
1.46:1 |
4.21 |
4.00 |
20.11 |
6.9 |
237.4 |
-1.49 |
|
UA9TC 13RS |
3.83 |
13.95 |
49.7 |
1.07:1 |
3.94 |
3.70 |
19.84 |
5.2 |
215.6 |
-1.35 |
|
G0KSC 13 LFA |
3.84 |
14.10 |
48.5 |
1.14:1 |
4.07 |
3.85 |
20.02 |
4.4 |
221.1 |
-1.28 |
|
InnoV 13 LFA |
3.86 |
13.98 |
48.7 |
1.20:1 |
4.02 |
3.77 |
19.89 |
7.0 |
219.5 |
-1.37 |
|
YU7EF 13 |
3.92 |
14.12 |
47.9 |
2.55:1 |
4.05 |
3.82 |
20.00 |
6.0 |
220.1 |
-1.28 |
|
IK0BZY 12 |
3.95 |
14.06 |
99.2 |
1.44:1 |
4.02 |
3.78 |
19.93 |
6.9 |
222.5 |
-1.39 |
|
Z(ohms) - measured on 144.100 MHz Bandwidth – VSWR measured on 145.000 MHz |
||||||||||
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 |
16.67 |
225.6 |
-6.85 |
|
110 |
16.57 |
242.1 |
-7.26 |
110 |
16.91 |
219.9 |
-6.50 |
|
120 |
16.88 |
235.4 |
-6.83 |
120 |
17.07 |
218.4 |
-6.31 |
|
130 |
17.06 |
232.4 |
-6.59 |
130 |
17.18 |
220.2 |
-6.23 |
|
140 |
17.19 |
230.2 |
-6.42 |
140 |
17.26 |
223.4 |
-6.22 |
|
150 |
17.30 |
228.6 |
-6.28 |
150 |
17.34 |
224.7 |
-6.16 |
|
160 |
17.39 |
227.5 |
-6.17 |
160 |
17.44 |
223.4 |
-6.04 |
|
170 |
17.48 |
226.8 |
-6.06 |
170 |
17.53 |
221.8 |
-5.92 |
|
180 |
17.56 |
226.4 |
-5.98 |
180 |
17.62 |
220.9 |
-5.81 |
|
190 |
17.64 |
226.2 |
-5.89 |
190 |
17.70 |
220.8 |
-5.73 |
|
200 |
17.71 |
226.0 |
-5.82 |
200 |
17.77 |
221.1 |
-5.66 |
|
210 |
17.78 |
225.7 |
-5.74 |
210 |
17.84 |
221.6 |
-5.60 |
|
220 |
17.86 |
225.3 |
-5.65 |
220 |
17.91 |
222.3 |
-5.55 |
|
230 |
17.93 |
224.7 |
-5.57 |
230 |
17.98 |
223.0 |
-5.49 |
|
240 |
18.01 |
224.0 |
-5.48 |
240 |
18.04 |
223.6 |
-5.44 |
|
250 |
18.08 |
223.2 |
-5.39 |
250 |
18.11 |
223.9 |
-5.38 |
|
260 |
18.16 |
222.3 |
-5.30 |
260 |
18.17 |
223.7 |
-5.31 |
|
270 |
18.23 |
221.4 |
-5.21 |
270 |
18.24 |
223.2 |
-5.23 |
|
280 |
18.31 |
220.5 |
-5.11 |
280 |
18.31 |
222.4 |
-5.15 |
|
290 |
18.38 |
219.7 |
-5.02 |
290 |
18.38 |
221.5 |
-5.06 |
|
300 |
18.45 |
218.9 |
-4.94 |
300 |
18.45 |
220.5 |
-4.97 |
|
310 |
18.52 |
218.2 |
-4.85 |
310 |
18.52 |
219.6 |
-4.88 |
|
320 |
18.58 |
217.7 |
-4.78 |
320 |
18.58 |
218.9 |
-4.81 |
|
330 |
18.64 |
217.2 |
-4.71 |
330 |
18.64 |
218.6 |
-4.74 |
|
340 |
18.69 |
216.9 |
-4.66 |
340 |
18.70 |
218.5 |
-4.68 |
|
350 |
18.74 |
216.8 |
-4.61 |
350 |
18.74 |
218.8 |
-4.64 |
|
360 |
18.78 |
216.8 |
-4.56 |
360 |
18.79 |
219.1 |
-4.60 |
|
370 |
18.82 |
216.9 |
-4.53 |
370 |
18.82 |
219.4 |
-4.58 |
|
380 |
18.85 |
217.1 |
-4.50 |
380 |
18.86 |
219.6 |
-4.54 |
|
390 |
18.88 |
217.4 |
-4.48 |
390 |
18.89 |
219.7 |
-4.51 |
|
400 |
18.90 |
217.8 |
-4.47 |
400 |
18.91 |
219.6 |
-4.49 |
|
410 |
18.92 |
218.3 |
-4.45 |
410 |
18.94 |
219.6 |
-4.46 |
|
420 |
18.93 |
218.7 |
-4.45 |
420 |
18.95 |
219.6 |
-4.45 |
|
430 |
18.94 |
219.2 |
-4.45 |
430 |
18.97 |
219.5 |
-4.43 |
|
|
|
|
|
440 |
18.98 |
219.4 |
-4.42 |
|
|
|
|
|
450 |
18.99 |
219.2 |
-4.40 |
|
|
|
|
|
460 |
18.99 |
218.9 |
-4.40 |
|
|
|
|
|
470 |
19.00 |
218.6 |
-4.38 |
|
|
|
|
|
480 |
19.00 |
218.2 |
-4.37 |
*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 (mm) |
Vertical distance (mm) |
G (dBi) |
TA (K) |
G/T (dB) |
Tloss (K) |
Remark |
|
3.719 |
3.663 |
21.64 |
218.9 |
-1.76 |
6.3 |
Per DL6WU formula |
|
4.020 |
3.880 |
21.70 |
220.0 |
-1.72 |
6.3 |
For max G/T |
|
3.720 |
3.520 |
21.50 |
217.8 |
-1.88 |
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 |
15.78 |
23.32 |
26.87 |
17.61 |
32.4 |
33.0 |
221.4 |
-7.67 |
5.7 |
|
Vertical |
15.85 |
21.47 |
14.41 |
20.30 |
32.4 |
31.6 |
223.6 |
-7.64 |
5.5 |
Horizontal polarisation patterns
Vertical polarisation patterns
