✦ LIBER ✦
A dual-band MMIC 180° lumped-element hybrid: Mixer application
✍ Scribed by Franco Giannini; Lucio Scucchia
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 168 KB
- Volume
- 14
- Category
- Article
- ISSN
- 1096-4290
No coin nor oath required. For personal study only.
✦ Synopsis
Design formulas for the development of an uncommon 180°hybrid working in two distinct frequency bands are provided. In particular, the design formulas of a lumped-element (LE) rat race, starting from a conventional transmission-line version, are obtained. Moreover, in order to generalize the approach, a matching problem at the input and output ports is taken into consideration, assuming the relevant impedances to be different. Finally, the design of a dual-band 180°LE hybrid, to be used in a singly balanced mixer, is carried out.