A signal receiver, comprising a first splitter configured to split its input into its first output and second output; a first mixer configured to mix its first input associated with said first output of said first splitter with its second input into its output; a second mixer configured to mix its first input associated with said second output of said first splitter with its second input into its output; a second splitter, arranged in parallel to the first splitter and configured to split its input into its first output and second output; a third mixer configured to mix its first input associated with said first output of said second splitter with its second input into its output; and a fourth mixer configured to mix its first input associated with said second output of said second splitter with its second input into its output; a first synthesizer configured to generate a first oscillating output; a first and a second image rejection filter; the first image rejection filter being connected to the first and second mixers and configured to receive the respective outputs from the first and second mixers to respectively generate a first signal and a second signal therefrom, and then to shift a phase of one of said first and second signals to be in phase with each other and to be combined into an output of said first image rejection filter; and the second image rejection filter being arranged in parallel to the first image rejection filter and connected to the third and fourth mixers to receive the respective outputs therefrom and to respectively generate a third signal and a fourth signal and then to shift a phase of one of said third and fourth signals to be in phase with each other and to be combined into an output of said second image rejection filter characterised in that the signal receiver further comprises one in-phase/quadrature (I/Q) splitter configured to split said first oscillating output into an in-phase oscillating output and a quadrature oscillating output with phase difference of 90 degrees, wherein said second input of said first mixer is said in-phase oscillating output of said in-phase/quadrature (I/Q) splitter, said second input of said second mixer is said quadrature oscillating output of said in-phase/quadrature (I/Q) splitter, said second input of said third mixer is said in-phase oscillating output of said in-phase/quadrature (I/Q) splitter, said second input of said fourth mixer is said quadrature oscillating output of said in-phase/quadrature (I/Q) splitter. a first splitter configured to split its input into its first output and second output; a first mixer configured to mix its first input associated with said first output of said first splitter with its second input into its output; a second mixer configured to mix its first input associated with said second output of said first splitter with its second input into its output; a second splitter, arranged in parallel to the first splitter and configured to split its input into its first output and second output; a third mixer configured to mix its first input associated with said first output of said second splitter with its second input into its output; and a fourth mixer configured to mix its first input associated with said second output of said second splitter with its second input into its output; a first synthesizer configured to generate a first oscillating output; a first and a second image rejection filter; the first image rejection filter being connected to the first and second mixers and configured to receive the respective outputs from the first and second mixers to respectively generate a first signal and a second signal therefrom, and then to shift a phase of one of said first and second signals to be in phase with each other and to be combined into an output of said first image rejection filter; and the second image rejection filter being arranged in parallel to the first image rejection filter and connected to the third and fourth mixers to receive the respective outputs therefrom and to respectively generate a third signal and a fourth signal and then to shift a phase of one of said third and fourth signals to be in phase with each other and to be combined into an output of said second image rejection filter characterised in that the signal receiver further comprises one in-phase/quadrature (I/Q) splitter configured to split said first oscillating output into an in-phase oscillating output and a quadrature oscillating output with phase difference of 90 degrees, wherein said second input of said first mixer is said in-phase oscillating output of said in-phase/quadrature (I/Q) splitter, said second input of said second mixer is said quadrature oscillating output of said in-phase/quadrature (I/Q) splitter, said second input of said third mixer is said in-phase oscillating output of said in-phase/quadrature (I/Q) splitter, said second input of said fourth mixer is said quadrature oscillating output of said in-phase/quadrature (I/Q) splitter.