Varactor-Based Continuously Tunable Microstrip Bandpass Filters: A Review, Issues and Future Trends.
Mengjie QinZhongmao LiZhipeng RenPengzhan LiuLanlan LiaoXin QiuZhiqiang LiPublished in: IEEE Access (2024)
Keyphrases
- bandpass
- future trends
- high pass
- open issues
- low pass
- microstrip
- frequency domain
- frequency band
- subband
- low frequency
- high frequency
- filter bank
- textured images
- geometric distortions
- small size
- zero crossing
- computer vision
- data mining
- grey level
- discrete wavelet transform
- feature extraction
- image fusion
- wavelet transform
- multiresolution
- object recognition
- high quality