Details

Autor(en) / Beteiligte

• Holdengreber, E.
• Mizrahi, M.
• Glassner, E.
• Koral, Y.
• Schacham, S.E.
• Farber, E.

Titel

Phase shift combiner for multi-channel VHF communication

Ist Teil von

• International journal of microwave and wireless technologies, 2017-02, Vol.9 (1), p.79-83

Ort / Verlag

Cambridge, UK: Cambridge University Press

Erscheinungsjahr

2017

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The growing demand for communication systems requires multi-channel solutions. However, the number of antennas in communication systems is dictated by the number of channels in each system which is limited by the available space on a broadcasting platform and by the limited available resources. We have developed a Multi-Channel Phase Control coupler in the VHF frequency range enabling a reduction in the number of antennas to a third of the original setup. The system is based on a phase shifter in a meander stripline geometry connected to each channel individually. The channels are then phase matched simultaneously to a single antenna through a computer-controlled capacitor bank connected to each phase shifter. The system performance shows a low insertion loss of 0.5 dB and a low return loss of −15 dB for the multi-channel setup.