Novel Multifunctional Dual-Band Coupled-Line Coupler With Reuse of Low-Frequency Trans-Directional and High-Frequency Contra-Directional Functions.
Yifan ZhangYongle WuWeimin WangYuhao YangLi MaPublished in: IEEE Trans. Circuits Syst. II Express Briefs (2021)
Keyphrases
- high frequency
- low frequency
- contourlet transform
- high pass
- subband
- visual quality
- microstrip
- discrete wavelet transform
- high resolution
- dual band
- low pass
- wavelet transform
- frequency domain
- high frequency components
- bandpass
- frequency band
- wavelet coefficients
- dual tree
- bit rate
- wavelet decomposition
- image compression
- low frequency coefficients
- low and high frequency
- wavelet domain
- dct coefficients
- feature extraction
- human visual system
- filter bank
- gray level
- motion estimation
- image data
- feature vectors