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A V type aperture coupled circular polarization patch antenna constructed with a microstrip line formed on a rear face of a dielectric substance, a ground surface formed on an entire face of the dielectric substance, a V type aperture formed at a desired angle on the basis of a portion of the ground

A V type aperture coupled circular polarization patch antenna constructed with a microstrip line formed on a rear face of a dielectric substance, a ground surface formed on an entire face of the dielectric substance, a V type aperture formed at a desired angle on the basis of a portion of the ground surface, which overlaps with the microstrip line, and a patch formed into a rectangular shape and mounted at an upper portion of the aperture so as to cover the aperture. At 1.9375 GHz, which is one of center frequencies of IMT-2000, the reflection loss is -11.34 dB, the band width at minus 10 dB is 15.2% (295 MHz), the beam width is 60°, and a proper circular polarization may be obtained.

대표청구항 ▼

A V type aperture coupled circular polarization patch antenna constructed with a microstrip line formed on a rear face of a dielectric substance, a ground surface formed on an entire face of the dielectric substance, a V type aperture formed at a desired angle on the basis of a portion of the ground

A V type aperture coupled circular polarization patch antenna constructed with a microstrip line formed on a rear face of a dielectric substance, a ground surface formed on an entire face of the dielectric substance, a V type aperture formed at a desired angle on the basis of a portion of the ground surface, which overlaps with the microstrip line, and a patch formed into a rectangular shape and mounted at an upper portion of the aperture so as to cover the aperture. At 1.9375 GHz, which is one of center frequencies of IMT-2000, the reflection loss is -11.34 dB, the band width at minus 10 dB is 15.2% (295 MHz), the beam width is 60°, and a proper circular polarization may be obtained. r determining a code phase difference between portions of the first and second correlation data corresponding to the PN code hypothesis, for adjusting a selected one of the portions of the first and second correlation data responsive to the code phase difference, combining the adjusted data with the other portion to obtain cumulative correlation data useful for detecting a signal of interest or a parameter of a signal of interest, and generating said code phase hypothesis. 11. The signal detector of claim 10 wherein said correlator comprises a match filter. 12. A method for detecting a signal comprising: receiving a first segment of a signal, and a second segment of the signal, the signal comprising a signal of interest perturbed by noise or pseudo-noise, and the first and second segments representing periods of time; generating a hypothesis; deriving first correlation data representative of the correlation between the first segment and the hypothesis, and second correlation data representative of the correlation between the second segment and the hypothesis; determining a parameter difference between the first and second correlation data; adjusting a selected one of the first and second correlation data responsive to the parameter difference; and combining the adjusted data with the other of the first and second correlation data to obtain cumulative correlation data useful for detecting the signal of interest or a parameter of the signal of interest. 13. A method for detecting a signal comprising: receiving a first segment of a signal and a second segment of the signal, the signal representative of a plurality of signals of interest, each signal of interest representative of a repeating PN code modulated onto a carrier signal, the first and second segments representing periods of time; generating a code phase hypothesis; deriving first correlation data representative of the correlation between the first segment and a combined PN code and code phase hypothesis, and second correlation data representative of the correlation between the second segment and the combined PN code and the code phase hypothesis; determining a code phase difference between portions of the first and second correlation data corresponding to the PN code hypothesis; adjusting a selected one of the portions of the first and second correlation data responsive to the code phase difference; and combining the adjusted data with the other portion to obtain cumulative correlation data useful for detecting a signal of interest or a parameter of a signal of interest. 14. A signal detector comprising: means for receiving a signal of interest comprising a first segment and a second segment of said signal of interest, each segment representing a period of time; means for correlating a first correlation data corresponding to a first correlation between said first segment and a hypothesis, for deriving a second correlation data corresponding to a second correlation between said second segment and said hypothesis, and for generating said hypothesis; means for determining a parameter difference between said first and said second correlation data; means for adjusting a selected one of said first and said second correlation data in response to said parameter difference to determine an adjusted data; and means for combining said adjusted data with the non-selected correlation data for generating a cumulative correlation data for detecting said signal of interest. 15. A signal detector, comprising: a receiver to detect a first segment of a signal of interest and a second segment of said signal of interest, and said first segment and said second segment representing periods of time; a correlator, coupled to the receiver, to derive a first correlation data representative of the correlation between the first segment and a hypothesis, to derive a second correlation data representative of the correlation between the second segment and said hypothes is, and to generate said hypothesis; a parameter determiner, coupled to the correlator, to determine a parameter difference between said first and said second correlation data; a processor, coupled to said parameter determiner, to adjust a selected one of the first and second correlation data responsive to the parameter difference to determine an adjusted data; and a combiner, coupled to the adjuster, to combine the adjusted data with the non-selected correlation data to generate cumulative correlation data useful for detecting said signal of interest. 16. The signal detector of claim 15, wherein said correlator comprises a matched filter. 17. A method for detecting a signal of interest comprising the steps of: receiving a first segment of a signal of interest; receiving a second segment of said signal of interest; generating a hypothesis; deriving a first correlation data representative of the correlation between said first segment and said hypothesis; deriving a second correlation data representative of the correlation between said second segment and said hypothesis; determining a parameter difference between said first and said second correlation data; selecting one of said first and said second correlation data; adjusting said selected correlation data in response to said parameter difference to determine an adjusted data; and combining said adjusted data with the non-selected correlation data to determine a cumulative correlation data for detecting said signal of interest. 18. Computer readable media having a program for storing a series of instructions for detecting a signal of interest, the program for performing at least the following: receiving a first segment of a signal of interest; receiving a second segment of said signal of interest, such that said first segment and said second segment represent periods of time; generating a hypothesis; deriving a first correlation data representative of the correlation between said first segment and said hypothesis; deriving a second correlation data representative of the correlation between said second segment and said hypothesis; determining a parameter difference between said first and said second correlation data; selecting one of said first and said second correlation data; adjusting said selected correlation data in response to said parameter difference to determine an adjusted data; and combining said adjusted data with the non-selected correlation data to determine a cumulative correlation data useful for detecting said signal of interest. defined in claim 6 wherein said preselected length and said preselected width of said GRIN rod lens is defined to permit said GRIN rod lens to have some degree of flexibility. 28. The optical interconnect system as defined in claim 7 wherein said preselected length and said preselected width of said GRIN rod lens is defined to permit said GRIN rod lens to have some degree of flexibility. 29. The optical interconnect system as defined in claim 18 wherein said preselected length and said preselected width of said GRIN rod lens is defined to permit said GRIN rod lens to have some degree of flexibility. 30. The optical interconnect system as defined in claim 19 wherein said preselected length and said preselected width of said GRIN rod lens is defined to permit said GRIN rod lens to have some degree of flexibility. 31. The optical interconnect system as defined in claim 25 wherein said preselected length and said preselected width of said GRIN rod lens is defined to permit said GRIN rod lens to have some degree