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In this paper a novel concept for the realization of a highly integrated receiver frontend is presented. The frontend consists of a forward coupler to split the low frequency path (0–43 GHz) and the high frequency path (43–67 GHz), a mixer for the down conversion of the high frequency input signal and a magnetically tunable filter to achieve a high supression (>60 dBc) of the image frequency and...
In this paper a novel concept for the realization of a highly integrated receiver frontend is presented. The frontend consists of a forward coupler to split the low frequency path (0–43 GHz) and the high frequency path (43–67 GHz), a mixer for the down conversion of the high frequency input signal and a magnetically tunable filter to achieve a high supression (>60 dBc) of the image frequency and...
In this paper a novel tunable high isolation bandpass filter is presented. The filter consists of two shielded coplanar transmission lines coupled by a rectangular waveguide. Hexagonal ferrite spheres are used to cover a tuning frequency range from 50 to 80GHz. Measurement results up to 69GHz are shown. The measured insertion loss of the filter lies between 7.1 and 9.3dB. An off-resonance isolation...
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