Phase shifter with broadband and phase array module using the same

A phase array module, comprising:

• a power divider;
• an adjustable attenuator array, connected to the power divider;
• a phase array, connected to the adjustable attenuator array, wherein the phase array includes a plurality of phase shifters, one of the phase shifters includes at least one phase shifting unit, and the phase shifting unit includes:
• a first switch, having a first end, a second end, a third end and a fourth end;
• a first capacitor;
• a second capacitor;
• a first inductor, wherein the first capacitor is connected between the first inductor and the second end of the first switch, the second capacitor is connected between the first inductor and the third end of the first switch;
• a second switch, having a first end, a second end, a third end and a fourth end, wherein the second end of the second switch is connected to a ground end;
• a second inductor, wherein two ends of the second inductor are respectively connected to the ground end and the third end of the second switch, and the first inductor is connected between the first capacitor and the third end of the second switch;
• a first resistor, connected between the first end of the first switch and a first control voltage;
• a second resistor, connected between the first end of the second switch and a second control voltage, wherein the first control voltage is a reverse voltage of the second control voltage;
• a third resistor, connected to the fourth end of the first switch;
• and
• a fourth resistor, connected to the fourth end of the second switch;
• a first switch array, connected to the phase array;
• a power amplifier array, connected to the first switch array;
• a low noise amplifier array, connected to the first switch array;
• and
• a second switch array, connected to the power amplifier array and the low noise amplifier array.