Method and system for generation of signals up to extremely high frequencies using a delay block

A machine-readable storage having stored thereon, a computer program having at least one code section for signal processing, the at least one code section being executable by a machine for causing the machine to perform steps comprising:

• delaying a first signal via a at least a portion of a plurality of delay elements and a variable capacitance to generate a second signal that is 90° phase shifted relative to said first signal;
• and
• mixing said first signal with said second signal to generate a third signal wherein:
• a frequency of said third signal is twice a frequency of said first signal;
• and
• said delaying is controlled to maximize the strength of said third signal.

A system for signal processing, the system comprising:

• one or more circuits that delay a first signal via a at least a portion of a plurality of delay elements and a variable capacitance to generate a second signal that is 90° phase shifted relative to said first signal;
• and
• said one or more circuits mix said first signal with said second signal to generate a third signal wherein:
• a frequency of said third signal is twice a frequency of said first signal;
• and
• said delay is controlled to maximize the strength of said third signal.