Distributed antenna system

Claims

1. A distributed antenna system comprising:

a primary antenna means for receiving modulated RF carrier signals from a remotely positioned radio frequency antenna means;

a circuit means including a first means connected to the primary antenna means for converting the modulated RF carrier signals to corresponding modulated light signals, an optic fiber network means having a first end and a plurality of second ends, the first end being connected to the first means for receiving and transporting the modulated light signals to the plurality of second ends, a plurality of second means connected to the plurality of second ends for receiving the modulated light signals and outputting corresponding modulated RF carrier signals, and a corresponding plurality of secondary antenna means connected to the plurality of second means.Iadd.each.Iaddend.for receiving and transmitting.Iadd.all.Iaddend.the corresponding modulated RF carrier signals, wherein modulated RF carrier signals are received by the first means of the circuit.Iadd.means.Iaddend.for conversion to light modulated signals for transport through a radio frequency interference environment location by the optic fiber network.Iadd.means.Iaddend.and conversion back to modulated RF carrier signals by the second means for transmission by.Iadd.all.Iaddend.the plurality of secondary antenna means.

3. A distributed antenna system comprising:

a primary antenna means for transmitting modulated RF carrier signals to a remotely positioned radio frequency antenna means; and

a circuit means including: a first means connected to the primary antenna means for converting modulated light carrier signals to modulated RF carrier signals for transmission by the primary antenna means to the remotely positioned radio frequency antenna means, a fiber optic network means having a first end and a plurality of second ends in communication with the first end,.Iadd.wherein all optical signals input into each of the second ends of the fiber optic network means are combined optically into a composite optical signal communicated to the first means,.Iaddend.said first end being connected to the first means for inputting modulated light signals received from the plurality of second ends into the first means for conversion.Iadd.of the composite optical signal.Iaddend.to modulated RF carrier signals, a plurality of second means for converting modulated RF carrier signals into modulated light signals, said plurality of second means being connected to the plurality of second ends for inputting the modulated light signals into the fiber optic network.Iadd.means.Iaddend., and a plurality of secondary antenna means for receiving RF modulated carrier signals, said plurality of secondary antenna means being connected to the plurality of second means for inputting any received modulated RF carrier signals.

4. A distributed antenna system according to claim 3 wherein the plurality of second means for converting modulated RF carrier signals into modulated light signals includes a plurality of receiver amplifier means.Iadd.,.Iaddend.for receiving the modulated RF carrier signals and producing control signals, and a plurality of laser means connected to the plurality of receiver amplifier means for receiving the control signals and outputting modulated light signals for the fiber optic network means and the circuit first means connected to the primary antenna means including a photodetector means connected to the fiber optic network means for receiving the.Iadd.composite.Iaddend.modulated light signals and outputting corresponding modulated RF carrier signals for transmission by the primary antenna means to a remotely positioned antenna means.