Antenna diversity system with at least two antennae for the mobile reception of very-high and ultra-high frequency waves

US5313660A · kind A · utility

Assignee

• FUBA Hans Kolbe & Co. · DE

Inventors

• Heinz Lindenmeier · Planegg, DE
• Jochen Hopf · Haar, DE
• Leopold Reiter · Gilching, DE
• Rainer Kronberger · Hohenkirchen, DE

Key dates

• Filing date: Jun 8, 1992
• Grant date: May 17, 1994
• Expiry date: Jun 8, 2012

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B7/0842
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

The antenna diversity system for mobile reception of VHF and UHF waves has a plurality of antennae; an antenna distributor connected to each of the antennae to receive antenna signals from the antennae and having a plurality of inputs and sets of outputs; a plurality of antenna switches, each of the antenna switches being connected to one of the sets of outputs of the antenna distributor; a plurality of tuners, each of the tuners connected to one of the antenna switches and producing one of an intermediate-frequency signal and demodulated signal; a plurality of diversity processors, each of the diversity processors being connected to a tuner to receive an intermediate-frequency or demodulated signal therefrom and also to the antenna switch of the tuner connected thereto via a control line and being structured to carry out a signal evaluation of the signal received in the diversity processor to control the antenna switch to switch through a more favorable input signal to the tuner connected to it.