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A W-band dual-channel receiver is presented for the frequency-modulated continuous wave radars. In order to improve the isolation between two RF channels, a compact active power divider is implemented by a dual-output local oscillator (LO) amplifier. The temperature-compensated circuit also mitigates the gain variation of the receiver according to the ambient temperature. The fabricated receiver integrated...
A reconfigurable 1:3 power divider is presented using quarter-wave long coupled lines and switches. The proposed power divider allows dual operating mode, or a 1:3 power divider and 1:0 power transmission mode, by turning the switches on and off. To make a high power-division ratio of three realisable and improve the bandwidth, a microstrip-slot structure is adopted on a thick substrate with high...
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