NOVEL PHASE SHIFTERS FOR MICROSTRIP REFLECTARRAY ANTENNAS

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OREYZI HOMAYOUN; KEYGHOBAD K.; HOSSEIN ZADEH SHAHRAM

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Paper Information

Journal: NASHRIYYAH -I MUHANDISI -I BARQ VA MUHANDISI -I KAMPYUTAR -I IRAN, A- MUHANDISI -I BARQ Year:2006 | Volume:4 | Issue:1 Page(s): 37-44

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Information Journal Paper

Title

NOVEL PHASE SHIFTERS FOR MICROSTRIP REFLECTARRAY ANTENNAS

Author(s)

OREYZI HOMAYOUN | KEYGHOBAD K. | HOSSEIN ZADEH SHAHRAM | Issue Writer Certificate

Keywords

ASYMMETRICAL T JUNCTIONQ4

METHOD OF LEASED SQUAREQ4

MICROSTRIP BENDQ4

PHASE SHIFTERQ4

REFLECTARRAYQ2

Abstract

A popular method for creating required phase shifts for patches in a microstrip REFLECTARRAY uses open ended stubs attached to the patches. Uniform stubs are narrowband and hence limit the bandwidth of the array. In this paper, two novel methods for designing broadband reactive PHASE SHIFTERs are proposed based on the method of least squares. A structure consisting of transmission line sections, open-ended stubs, and resistors is considered for the PHASE SHIFTER. Another one consists of transmission lines and open-ended. A least square error function is constructed for the required phase shift and the characteristic impedances, electrical lengths of transmission lines and resistances are obtained by its minimization. Then, the circuit is realized by microstrip lines to be attached to the microstrip patch. It is shown that the novel PHASE SHIFTERs create the required phase shifts in a broader bandwidth than those of uniform stub phase shifters. The frequency response of proposed microstrip line PHASE SHIFTERs are validated by the results obtained using AWR's Microwave Office software.

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APA: Copy

OREYZI, HOMAYOUN, KEYGHOBAD, K., & HOSSEIN ZADEH, SHAHRAM. (2006). NOVEL PHASE SHIFTERS FOR MICROSTRIP REFLECTARRAY ANTENNAS. NASHRIYYAH-I MUHANDESI-I BARQ VA MUHANDESI-I KAMPYUTAR-I IRAN (PERSIAN), 4(1), 37-44. SID. https://sid.ir/paper/53749/en

Vancouver: Copy

OREYZI HOMAYOUN, KEYGHOBAD K., HOSSEIN ZADEH SHAHRAM. NOVEL PHASE SHIFTERS FOR MICROSTRIP REFLECTARRAY ANTENNAS. NASHRIYYAH-I MUHANDESI-I BARQ VA MUHANDESI-I KAMPYUTAR-I IRAN (PERSIAN)[Internet]. 2006;4(1):37-44. Available from: https://sid.ir/paper/53749/en

IEEE: Copy

HOMAYOUN OREYZI, K. KEYGHOBAD, and SHAHRAM HOSSEIN ZADEH, “NOVEL PHASE SHIFTERS FOR MICROSTRIP REFLECTARRAY ANTENNAS,” NASHRIYYAH-I MUHANDESI-I BARQ VA MUHANDESI-I KAMPYUTAR-I IRAN (PERSIAN), vol. 4, no. 1, pp. 37–44, 2006, [Online]. Available: https://sid.ir/paper/53749/en

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