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Dual channel high speed wireless data transfer device

  • US 5,999,519 A
  • Filed: 07/28/1997
  • Issued: 12/07/1999
  • Est. Priority Date: 07/28/1997
  • Status: Expired due to Fees
First Claim
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1. A portable wireless communication device for relaying high speed data over a relatively short distance at a transmit frequency in excess of approximately 40 Gigahertz comprising:

  • a) a first modulator including a first input port receiving high speed data at a data rate up to approximately 155 Megabits per second, bi-phase modulating the data on a first carrier frequency and translating a resulting signal to a frequency in excess of 1 Gigahertz;

    b) a second modulator including a second input port receiving high speed data at a data rate up to approximately 155 Megabits per second, bi-phase modulating the data on a second carrier frequency, which is separated from the first carrier frequency by approximately 300 Megahertz, and translating a resulting signal to a frequency in excess of approximately 1 Gigahertz;

    c) a transmitter being coupled to the first and second modulators, said transmitter including;

    (i) a power combiner forming a combined signal from the bi-phase modulated data on the first carrier frequency output by the first modulator and the bi-phase modulated data on the second carrier frequency output by the second modulator; and

    (ii) an upconverter translating the combined signal output from the power combiner up in frequency to a frequency in excess of approximately 40 Gigahertz;

    d) an antenna being coupled to the transmitter and radiating an RF signal in excess of approximately 40 Gigahertz, said antenna including;

    (i) a micro patch antenna array having a plurality of individual antenna elements with a linear field distribution across said plurality of elements, said linear field distribution reducing a first five to ten significant side lobes, while maintaining acceptable antenna efficiency;

    (ii) an input port being coupled to the transmitter; and

    (iii) a corporate antenna feed system distributing RF power from the antenna input port to each of the plurality of individual antenna elements; and

    e) a case containing the first modulator, the second modulator, the transmitter, and the transmit antenna, said case having a size of approximately twelve inches by twelve inches by six inches.

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