Microstrip lateral RF MEMS switch integrated with multistep CPW transition
✍ Scribed by A. Q. Liu; W. Palei; M. Tang; A. Alphones
- Book ID
- 102516278
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 140 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0895-2477
No coin nor oath required. For personal study only.
✦ Synopsis
Figure 3 shows the radiation patterns and cross-polarization lobes in the E-plane measured in a near-field laboratory. The radiation patterns show that the maximal side-lobe level is less than Ϫ15.5, Ϫ10.8, and Ϫ12.2 dB, respectively. The measured cross-polarization level is at least Ϫ44, Ϫ41, and Ϫ40 dB below the co-polarization at the three frequencies, respectively.
4. CONCLUSION
A novel untitled edge-slotted waveguide array has been presented. A pair of shaped-irises is used to excite the slot. An array with 16 such elements has been simulated, fabricated, and measured. The simulated results agree well with measured ones. The experiment results show that the cross-polarization level is less than Ϫ40 dB and the bandwidth of this array is over 7% for VSWR Յ 1.5, thus verifying the validity of the new design. In addition, the untilted slotted waveguide array is of low loss. Therefore, its gain can be higher and therefore suitable for many radar applications.