Title :
Performance of a 20 cm short active AM/FM monopole antenna for automotive application
Author :
Negut, Alexandru ; Reiter, Leopold ; Hopf, Jochen ; Lindenmeier, Stefan
Author_Institution :
Inst. of High Freq. & Mobile Commun., Univ. of the Bundeswehr, Neubiberg
Abstract :
The performance of a very short active monopole AM/FM-antenna with a length of only 0.2 m (7.9n) is investigated and presented for automotive application. An advanced high impedance amplifier concept enables the realization of such a very short antenna on base of a lean monopole design which is easy to manufacture. The parameters and the conditions which determine the performance of the design are investigated and explained. Measurements in the field show that the new antenna has satisfactory performance in comparison with common passive rod antennas of 0.9 m (35.4n) length, both for the AM and FM range, if the density of strong FM broadcast stations is high, the co- and neighbour channel interference being predominant in comparison to the noise and reduction of sensitivity.
Keywords :
broadcast antennas; mobile antennas; monopole antennas; automotive application; broadcast stations; channel interference; high impedance amplifier; short active AM monopole antenna; short active FM monopole antenna; size 20 cm; Antenna measurements; Automotive applications; Broadcasting; Density measurement; Impedance; Interference; Length measurement; Manufacturing; Noise measurement; Noise reduction;
Conference_Titel :
Antennas and Propagation, 2009. EuCAP 2009. 3rd European Conference on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-4753-4
Electronic_ISBN :
978-3-00-024573-2
