The Electro-Metrics EM-6939 Log Periodic Antenna operates over the 800 MHz – 20 GHz frequency range.


The EM-6939 is capable of operating either as a transmitting or as a receiving antenna over the frequency range of 800 MHz – 20 GHz. Its linearly polarized designed permits separate measurement of horizontal and vertical electric field components over its established range.



Frequency Range: 800 MHz – 20 GHz
Impedance: 50 Ohms, nominal
VSWR: < 2:1, average
Gain: 3-6 dBi
Average Beamwidth:
E Plane: 70º
H Plane: 125º
Maximum Continuous Power: 5 watts
Connector: Type SMA (Jack)


Length: 27 cm (10.07”)
Width: 20 cm (8”)
Depth: 1.5 cm (5/8”)
Weight: .05 kg (.11 lb.)
Mounting: Standard ¼-20 thread

Product Sheet