with more than 20 publications in Dubus Magazine and other print media on antenna related topics like Boom Correction, stacking
and plotting I have shown my capacities on this field. For this I make extensive use of EZNEC and 4nec2 simulation tools,
a self programmed Yagi Element Configuration Tool and more. Using adequate Analysers like TR 1300 by Planar - OZBOR
or Agilent 8594 E in house and sharpening my skills in regular exchange with others professionals at TGN Technology Ltd.
or WiMo I am well trained to meet your demands for Research and Development for top range gear on VHF/UHF bands.
What I can do for you is producing full antenna simulation analysis, antenna designs to your specification, assisting in setting up your pilot antenna design
with boom correction factors and CAD drawings for production.
References please?
DIN 7/16 cable bushing bracket for 40 x 40 mm boom & confectioning:
LCF 12-50J, Spinner BN bushing, adhesive lined heat shrink tube
Trimmed 2 wavelength patch line for 28 MHz - 3 kW, LCF 12-50J, DIN 7/16
Antennas: My NEC Model
and the real factory build
Photo: H. Klüver
Photo: H. Klüver: T.G.N LTD - Octenna 7; G/T optimised, 470-690 MHz, LTE Cut Off
My NEC Model
and the real factory build
Photo: T.G.N LTD - DIGYA43MK2; G/T optimised, 470-690 MHz, LTE Cut Off
Photo: DL1TGN @ T.G.N LTD - 6 x 8 elem. FM DX Yagi; F/R optimised, 88-108 MHz, 4.38 m boom
Freq.
Gain
F/B
88 MHz
10.0 dBi
26 dB
94 MHz
10.9 dBi
36 dB
102 MHz
12.2 dBi
36 dB
108 MHz
11.1 dBi
29 dB
6 x 18 elem. FM DX Yagi; F/R optimised, 88-108 MHz, boom 4.2 m
6 x 18 elem. FM DX Yagi; F/R optimised, 88-108 MHz, boom 4.2 m
3D CAD Drawing for production (DG7YBN)
3D CAD Drawing for production (DG7YBN)
Freq.
Gain
F/B
88 MHz
11.1 dBi
26 dB
90 MHz
11.4 dBi
28 dB
94 MHz
11.9 dBi
> 40 dB
98 MHz
12.4 dBi
32 dB
102 MHz
12.7 dBi
27 dB
108 MHz
11.9 dBi
27 dB
Short version: 6 x 11 elem. FM DX Yagi, boom 2.8 m
Freq.
Gain
F/B
88 MHz
10.0 dBi
26 dB
90 MHz
10.3 dBi
31 dB
94 MHz
10.7 dBi
37 dB
98 MHz
11.1 dBi
28 dB
102 MHz
11.3 dBi
26 dB
108 MHz
10.0 dBi
25 dB
Compact VHF TV Band 1 and OIRT Yagi with bent Dipole (K6STI-style)
Boom 2.08 m, Gain ~ 4 ... 8 dBi (45 ... 82 MHz)
Interlaced 28 MHz Quad / 50 MHz Yagi, Boom 9.50 m
Simulation of antennas and adaption to interlaced combination.
Freq.
Gain
F/B
28.2 MHz
11.3 dBi
23.8 dB
28.5 MHz
11.4 dBi
23.8 dB
50.2 MHz
13.0 dBi
>35 dB
• TGN Technology - DVB-T Yagi Range Design, Boom Correction and RF Compliant Realisation of Mechanical Design
• WiMo - VHF/UHF Yagis by YU7EF: Boom Correction, Balun Design and Building Details (production ran out)
• Various Publications in Dubus, Practical Wireless and other magazines on Antenna G/T, designs and correction factors for building