Multiple band portable spectrum analyzer
First Claim
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1. An system for receiving radio frequency signals and detecting radio frequency signals on at least two different bands, comprising:
- an apparatus for detecting RF power on two or more radio frequency bands and that is connected to a computing device, the apparatus including;
a housing for enclosing components of the apparatus,an antenna attached to said housing for receiving radio frequency signals,a switch for selecting a band of radio frequency signals for detection by sending signals directly from the antenna to a radio system for detection when in a first position, and to a band pass filter when in a second position,a band pass filter for selecting a radio frequency band,a mixer for down converting radio frequency signals to a band received by said radio system,an oscillator for generating a local oscillator signal for said mixer, for defining the frequency of signals passed by said mixer, andsaid radio system comprising at least a first radio receiver configured to detect RF power in a single radio frequency band,wherein the apparatus determines the RF power of a first radio frequency band with the first radio receiver by routing via the switch first radio frequency band signals from said antenna to said radio system, andwherein the apparatus determines the RF power of a second radio frequency band with the first radio receiver by routing via the switch second radio frequency band signals from said antenna through said band pass filter for down conversion then through said mixer in which second radio frequency band signals are converted to said first band whereby said radio system can detect second radio frequency band signals; and
a computing device with a graphical user interface and configured to display data received from the apparatus,wherein the data is a graphical representation of the RF power of the first radio frequency band and the second radio frequency band.
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Abstract
A device for detecting RF power information, for use as a stand alone purpose built device, or connectable to an external computing instrument such as a laptop, PDA, or cell phone, or other similarly capable technology. The device scans two or more bands in the wireless frequency and provides output to the user with wireless information about multiple bands of information.
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Citations
19 Claims
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1. An system for receiving radio frequency signals and detecting radio frequency signals on at least two different bands, comprising:
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an apparatus for detecting RF power on two or more radio frequency bands and that is connected to a computing device, the apparatus including; a housing for enclosing components of the apparatus, an antenna attached to said housing for receiving radio frequency signals, a switch for selecting a band of radio frequency signals for detection by sending signals directly from the antenna to a radio system for detection when in a first position, and to a band pass filter when in a second position, a band pass filter for selecting a radio frequency band, a mixer for down converting radio frequency signals to a band received by said radio system, an oscillator for generating a local oscillator signal for said mixer, for defining the frequency of signals passed by said mixer, and said radio system comprising at least a first radio receiver configured to detect RF power in a single radio frequency band, wherein the apparatus determines the RF power of a first radio frequency band with the first radio receiver by routing via the switch first radio frequency band signals from said antenna to said radio system, and wherein the apparatus determines the RF power of a second radio frequency band with the first radio receiver by routing via the switch second radio frequency band signals from said antenna through said band pass filter for down conversion then through said mixer in which second radio frequency band signals are converted to said first band whereby said radio system can detect second radio frequency band signals; and a computing device with a graphical user interface and configured to display data received from the apparatus, wherein the data is a graphical representation of the RF power of the first radio frequency band and the second radio frequency band. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for receiving radio frequency signals and detecting radio frequency signals on at least two different bands, for use with a computing device, wherein said computing device includes a graphical user interface, comprising:
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a housing for enclosing components of the apparatus; an antenna attached to said housing for receiving radio frequency signals; a switch for selecting a band of radio frequency signals for detection by sending signals directly to a radio system for detection when in a first position and to a band pass filter when in a second position; a band pass filter for selecting a radio frequency band; a mixer for down converting signals in the 5 GHz band to 2.4 GHz for RF power detection by a 2.4 GHz first radio receiver; an oscillator for generating a local oscillator signal for said mixer, for defining the frequency of signals passed by said mixer, with said oscillator being a voltage controlled oscillator controlled by said microcontroller;
wherein, said voltage controlled oscillator frequency is varied to control the down conversion at said mixer;said radio system comprising at least a 2.4 GHz first radio receiver, a microcontroller, memory, and at least one port, the port provides communication with a port on said computing device, the 2.4 GHz first radio receiver detects RF power in a single radio frequency band; and a connector attached to said housing and configured for removable attachment to said computing device, said connector for transfer of detected network information from said radio system to said computing device and configured to exchange commands and data with said computing device, wherein the apparatus determines the RF power of a 2.4 GHz radio frequency band by routing via the switch first radio frequency band signals from said antenna to the 2.4 GHz first radio receiver of said radio system, wherein the apparatus determines the RF power of a 5 GHz radio frequency band by routing via the switch second radio frequency band signals from said antenna through said band pass filter for down conversion then through said mixer in which the second radio frequency band signals are converted to said first radio frequency band and then to the 2.4 GHz first radio receiver of said radio system to detect the converted second radio frequency band signals, and wherein the detected network information is instructions to display the RF power of the 2.4 GHz radio frequency band and the RF power of the 5 GHz frequency band. - View Dependent Claims (11, 12, 13, 14)
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15. An apparatus for receiving radio frequency signals and detecting radio frequency signals on at least two different bands, for use with a computing device where said computing device includes a graphical user interface, comprising:
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a housing for enclosing components of the apparatus; an antenna attached to said housing for receiving radio frequency signals; a switch for selecting a band of radio frequency signals for detection by sending signals to a first radio receiver for detection or to a band pass filter before routing to a first radio; a band pass filter for selecting a radio frequency band; a mixer for down converting radio frequency signals to a band received by a radio system; an oscillator for generating a local oscillator signal for said mixer, for defining the frequency of signals passed by said mixer; said radio system comprising the first radio receiver configured to detect RF power in the 2.4 GHz band, with said signal from said antenna being routable to said first radio receiver for direct detection of RF power in the 2.4 GHz band, and with said signal from said antenna being routable to said mixer for down conversion from the 5 GHz band to 2.4 GHz, for detection of RF power in the 5 GHz band by the first radio receiver; and a connector attached to said housing and configured for removable attachment to said computing device, said connector transfers detected network information from said radio system to said computing device and exchanges commands and data with said computing device, wherein the detected network information is instructions to display the RF power for the 2.4 GHz band and the 5 GHz band. - View Dependent Claims (16, 17, 18, 19)
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Specification