Abstract
A new compact and wideband 180° hybrid is proposed. The proposed structure stems from the idea of converting a balun into a 180° hybrid by adding an in-phase power divider. In order to achieve wide bandwidth and miniaturized size, a lumped power divider and a vertically coupled CPW balun with lumped elements are used. For verification, the proposed 180° hybrid is designed at 917 MHz. The measurement shows that the bandwidth of CMRR greater than 25 dB is increased by 84 % compared with that of the conventional ring hybrid.
| Original language | English |
|---|---|
| Pages (from-to) | 1328-1331 |
| Number of pages | 4 |
| Journal | Microwave and Optical Technology Letters |
| Volume | 55 |
| Issue number | 6 |
| DOIs | |
| State | Published - Jun 2013 |
Keywords
- 180° hybrids
- baluns
- coupled lines
- in-phase power dividers
- miniaturization