Abstract
This letter proposes a balanced intermodulation (IM) reference source with constant IM magnitude-frequency response using the nonlinearity equalization method. In the design, the diode is working as the nonlinear source, while the excitation carriers are equalized versus frequency to stimulate diode; thus, a flat IM3 magnitude-frequency response can be obtained accordingly. The experiment demonstrates this designed IM source can provide flat IM3 magnitude-frequency response at 700 MHz, 1800 MHz, and 2600 MHz IM3 test bands with a fluctuation error less than 1.5 dB, while three typical reference magnitudes ranges from −80 dBm, −90 dBm to −100 dBm at 2 × 43 dBm are demonstrated also.
Original language | English |
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Article number | 9062495 |
Pages (from-to) | 2634-2637 |
Number of pages | 4 |
Journal | IEEE Transactions on Electromagnetic Compatibility |
Volume | 62 |
Issue number | 6 |
DOIs | |
Publication status | Published - Dec 2020 |
Keywords
- Balanced intermodulation (IM)
- IM equalization
- flat IM response
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering