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An ultra-wideband (UWB) bandpass filter (BPF) with super compact circuit size is proposed, which is realized using bridged-T coils. By replacing all the transmission line sections of a tri-mode resonator with bridged-T coils, the filter size can be largely reduced while the original frequency response remains almost intact. The proposed filter structure can then be conveniently realized with semiconductor...
In this work, a miniature switched beamformer module at 2.4 GHz is proposed using the glass-based integrated passive device (IPD) technology. With the proposed bridged-T coil based designs, the circuit size of both the 4×4 Butler matrix and the single-pole four-throw RF switch can be largely reduced. They are then integrated into a compact IPD chip size of only 4.7 mm×4.7 mm to achieve a miniature...
In this letter, a miniaturized ultra-wideband bandpass filter based on thin-film integrated passive device process is proposed. The multi-mode resonator is adopted to achieve a wide bandwidth from 3.1 to 10.6 GHz. By using the bridged-T coil to replace the transmission line of multi-mode resonator, the circuit size is largely reduced while the multi-mode property can be retained. The filter size without...
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