7arrays / antenna kits / log.-periodic GHz
  Last Update July 26th 2020




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Antenna Kits: Log.-Per.

Log. Per. 0.42-6.0




• Logarithmic-Periodic Antenna for 0.42 to 6 GHz

A logarithmic-periodic antenna that covers a very useful range. Easy to connect through SMA connector. The printed board can be fastened to a holder behind the end segment. The antenne is made from 1.3 mm FR4 and designed by TGN Technologies using latest CAD software.


• Properties

Frequency Span   0.42 ... 6.0 GHz
Gain   3.5 ... 7.6 dBi
Return Loss   > -10 dB on 50 Ohm
Size   300 x 228 x 1.3 mm ex. SMA female connector
Power Rating   55 W at 100% Duty / 0.5 GHz, lower > 6 GHz, s. below

• Typical Applications

• Lab Measurements
• Spectrum Analysis
• EMC Radiation Control
• LTE, GSM, WLAN ...
• Amateur Radio Bands 70 cm ... 6 cm
• Broadband Feed for Dishes (note varying focal point)


Far Field Pattern at 1300 GHz, Gain = 7.6 dBi, F/B = 27 dB



Gain vs. Frequency (dBi) +/- 0.15 dB



Return Loss (S11), click to chart to enlarge



Max. Power Ratings at 100 Percent duty



These are conservative limits that comply with an operating temperature 50ºC for the PCB
Freq.(GHz)   watts   dBm
0.5   55   47.4
1   23   43.6
2   6   37.8
3   2.2   33.4
4   1.2   30.8
5   0.75   28.7
6   0.5   26.9

FAQ: Why is the maximum rated power decreasing so rapidly with higher frequency?

Towards higher frequency the excited area rapidly gets less. With that the
surface area for convection cooling gets less and less. While at the same time
losses inside the FR4 PCB turn higher. This is an inherent challenge with
every make of PCB Log.-Per. antenna, not just with ours.



Please Note: The SMA-bushing has to be soldered onto the board by the customer for shipping reasons. Soldering and adequate shipping on request.



Art. #   Description     Stock   Price
Log. Per. 0.42-6.0   Log.-Periodic Antenna for 0.42 to 6.0 GHz incl. SMA female     € 36,00


Prices incl. legal VAT. plus shipping costs