Search Results - "Lee, Juseop"

Frequency- and Bandwidth-Tunable Bandstop Filter Containing Variable Coupling Between Transmission Line and Resonator by Jeong, Seong-Wook, Lee, Juseop

“…This paper presents a frequency- and bandwidth-tunable bandstop filter using substrate-integrated wave- guide (SIW) resonators. For designing such a filter,…”
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Design of Triple-Passband Microwave Filters Using Frequency Transformations by Juseop Lee, Sarabandi, K.

“…This paper introduces a synthesis method for triple-passband microwave filters. A frequency transformation is developed for finding the locations of poles and…”
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Co-Design of Highly Efficient Power Amplifier and High- Q Output Bandpass Filter by Kenle Chen, Juseop Lee, Chappell, William J., Peroulis, Dimitrios

“…This paper reports the first co-design configuration of a power amplifier (PA) in cascade with a high- Q bandpass filter. By matching the filter's input port…”
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Rigorous design method for distributed‐element bandpass filter with reflectionless response at two ports by Lee, Gyuwon, Lee, Jongheun, Lee, Boyoung, Lee, Juseop

“…This letter reports an accurate and rigorous design method for a distributed‐element reflectionless bandpass filter capable of producing a reflectionless…”
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Theory for Pseudo-Butterworth Filter Response and Its Application to Bandwidth Tuning by Nam, Seunggoo, Lee, Boyoung, Lee, Juseop

“…This paper presents a new class of filter responses called pseudo-Butterworth filter response. A detailed mathematical analysis on the pseudo-Butterworth…”
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Band-Switchable Substrate-Integrated Waveguide Resonator and Filter by Lee, Boyoung, Koh, Beyoungyoun, Nam, Seunggoo, Lee, Tae-Hak, Lee, Juseop

“…In this paper, we present a new band-switchable substrate-integrated waveguide (SIW) filter structure and its design method. The filter can have a passband…”
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Novel Coupling Matrix Synthesis for Single-Layer Substrate-Integrated Evanescent-Mode Cavity Tunable Bandstop Filter Design by Saeedi, Shahrokh, Juseop Lee, Sigmarsson, Hjalti H.

“…A new technique for designing tunable bandstop filters is presented. A novel coupling matrix synthesis method for this type of bandstop filter is shown. Phase…”
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A Synthesis Method for Dual-Passband Microwave Filters by Juseop Lee, Sarabandi, K.

“…This paper describes a synthesis method for symmetric dual-passband microwave filters. The proposed method employs frequency transformation techniques for…”
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Transmission-Line Schematic for Harmonic-Controlled Bandpass Filters by Lee, Jongheun, Song, Minhyup, Lee, Juseop

“…This article presents a rigorous synthesis method of a transmission-line filter whose second passband can be placed at any multiple of the center frequency, in…”
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K-Band Frequency Tunable Substrate-Integrated- Waveguide Resonator Filter With Enhanced Stopband Attenuation by Lee, Boyoung, Nam, Seunggoo, Koh, Beyoungyoun, Kwak, Changsoo, Lee, Juseop

“…In this paper, we present a K-band substrate-integrated waveguide resonator bandpass filter structure. The filter uses an antisymmetric mode of the resonator…”
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Switchless Tunable Bandstop-to-All-Pass Reconfigurable Filter by Naglich, E. J., Juseop Lee, Peroulis, D., Chappell, W. J.

“…The theory of a new type of bandstop-to-all-pass reconfigurable filter is developed in this work. A bandstop filter structure with both source-to-load and…”
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Lumped-Element Realization of Absorptive Bandstop Filter With Anomalously High Spectral Isolation by Juseop Lee, Tsung Chieh Lee, Chappell, W. J.

“…In this paper, we show a new absorptive banstop filter topology that is capable of creating large attenuation using low- Q small-size resonators. In addition,…”
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Frequency-Tunable Low- Q Lumped-Element Resonator Bandstop Filter With High Attenuation by Tae-Hak Lee, Byungguk Kim, Kangho Lee, Chappell, William J., Juseop Lee

“…This paper presents a new lumped-element absorptive bandstop filter topology. It exhibits infinite attenuation at the center frequency and no reflection…”
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Dynamic Bandpass Filter Shape and Interference Cancellation Control Utilizing Bandpass-Bandstop Filter Cascade by Tsung-Chieh Lee, Juseop Lee, Peroulis, Dimitrios

“…A tunable highly integrated bandpass-bandstop filter (BSF) cascade that is capable of dynamically relocating its transmission zeros arbitrarily close to its…”
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A Tunable Bandpass-to-Bandstop Reconfigurable Filter With Independent Bandwidths and Tunable Response Shape by Naglich, E J, Juseop Lee, Peroulis, D, Chappell, W J

“…The theory of bandpass-to-bandstop reconfigurable filters is developed in this work, and example filters are demonstrated. Designs are developed that allow for…”
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Frequency-Tunable Tri-Function Filter by Lee, Tae-Hak, Lee, Boyoung, Nam, Seunggoo, Kim, Young-Sik, Lee, Juseop

“…In this paper, we present a reconfigurable filter capable of having three different responses, such as bandstop, bandpass, and all-pass responses. For…”
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Practical Circuit-Based Design Approach for Waveguide Lowpass Filter with Extremely Steep Skirt Response by Lee, Sanggu, Lee, Jongheun, Baek, Duccki, Lee, Pilyong, Lee, Juseop

“…This paper presents a practical circuit-based design approach for a waveguide lowpass filter with a steep skirt response. For efficient filter design, the…”
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Topology and Design Formulas for Four-Way Filtering Power Divider With Wide Isolation Range by Lee, Boyoung, Lee, Gyuwon, Lee, Juseop

“…In this paper, we present a topology with design equations for the rigorous design of multiway power dividers having a pre-defined filtering response featuring…”
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K -Band Substrate-Integrated Waveguide Filter Using TM21 Mode With Enhanced Stopband Attenuation by Lee, Boyoung, Nam, Seunggoo, Koh, Beyoungyoun, Lee, Juseop

“…In this letter, we present a method for enhancing the stopband attenuation performance of a K -band TM 21 mode filter using substrate-integrated waveguide…”
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RF CMOS Integrated On-Chip Tunable Absorptive Bandstop Filter Using Q-Tunable Resonators by Byungguk Kim, Jangjoon Lee, Juseop Lee, Byunghoo Jung, Chappell, William J.

“…A new approach for protecting sensitive receivers through large attenuation and its realization on-chip is presented for the first time. This paper…”
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