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- W2121254718 abstract "This work presents a new configuration of single-side band (SSB) harmonically pumped mixer implemented by using two kinds of wide-band quadrature couplers to achieve the characteristics of wide operation bandwidth, high side band suppression and compact circuit size. A new type of 3 dB re-entrant microstrip coupler, which is easy to integrate with the surface-mounted devices, is adopted to achieve the required quadrature phase shifts of the radio frequency (RF) and local oscillation signals. The lump-element type of intermediate frequency coupler is not only able to have broadband characteristics and compact circuit size, but also provide the low-pass filtering function to eliminate the low-pass filter of the mixer in the conventional design. An experimental prototype of the proposed SSB mixer was manufactured. The measured conversion losses of the prototype, which includes the losses caused by couplers, are lower than 13 dB. It also shows greater than 20 dB side-band suppression over the RF frequency range of 2.2 to 2.85 GHz and the measured side-band suppression at some RF frequencies are up to 45 dB. The size of the S-band prototype fabricated on FR4 PCB is only about 40 x 45 mm2." @default.
- W2121254718 created "2016-06-24" @default.
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- W2121254718 date "2008-12-01" @default.
- W2121254718 modified "2023-09-27" @default.
- W2121254718 title "Wide-Band Single-Side Band Subharmonic Mixer Constructed With Re-Entrant Couplers and Lumped-Element Coupler" @default.
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- W2121254718 doi "https://doi.org/10.1109/lmwc.2008.2007708" @default.
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