Search Results - "Seunggoo Nam"

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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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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Compact 28 GHz Folded Butler Matrix Using Low-Temperature Co-fired Ceramics by Nam, Seunggoo, Choi, Sehwan, Ryu, Jongin, Lee, Jaeyoung

“…This paper introduces a miniaturized Butler matrix design method using a folded structure. The Butler matrix was fabricated in multilayers using…”
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Advanced Beam Estimation for Antennas Via Patterned Coupling-Line Detection Board in Ka-Band by Hong, Seokyeon, Nam, Seunggoo, Choi, Sehwan, Joo, Jihan, Han, Jaesub

“…In this research, we present an innovative method for estimating the beams of array antennas. Traditional beam analysis methods rely on placing receiving…”
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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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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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Integration of Interresonator Coupling Structures With Applications to Filter Systems With Signal Route Selectivity by Koh, Beyoungyoun, Lee, Boyoung, Nam, Seunggoo, Lee, Tae-Hak, Lee, Juseop

“…This paper presents a positive-to-zero continuously tunable interresonator coupling structure for postloaded substrate-integrated cavity resonators. Two…”
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Practical Design and Implementation Method for Asymmetric-Response Post-Loaded Substrate-Integrated Waveguide Filters by Lee, Sanggu, Nam, Seunggoo, Lee, Juseop

“…This paper presents a practical method for implementing a post-loaded substrate-integrated waveguide (SIW) filter producing an asymmetric response with a pair…”
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Reconfigurable Bandpass Filter With Resonators in Cul-De-Sacs for Producing Notches by Nam, Seunggoo, Lee, Boyoung, Koh, Beyoungyoun, Lee, Juseop

“…We present a new design method for bandpass filters capable of adjusting center frequencies, bandwidths, and notches. For designing such filters, filter…”
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Frequency-Tunable Filtering Power Divider With New Topology by Lee, Boyoung, Koh, Beyoungyoun, Nam, Seunggoo, Lee, Tae-Hak, Lee, Juseop

“…In this paper, we present a new frequency-tunable filtering power divider structure and its design method. For achieving the frequency filtering…”
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Frequency-Tunable Substrate-Integrated Waveguide Filter using Contactless Rotatable Flaps by Seunggoo Nam, Boyoung Lee, Juseop Lee

“…This paper introduces a substrate-integrated waveguide (SIW) filter that can be tuned using contactless rotatable flaps. There is no mechanical contact between…”
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Single-Filter Structure With Tunable Operating Frequency in Noncontiguous Bands by Lee, Boyoung, Nam, Seunggoo, Lee, Tae-Hak, Ahn, Chang-Soo, Lee, Juseop

“…In this paper, we present a frequency-tunable substrate-integrated waveguide bandpass filter of which the operating frequency band can be switched between…”
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Constant-absolute-bandwidth frequency-tunable half-mode SIW filter containing no tunable coupling structures by Seunggoo Nam, Boyoung Lee, Juseop Lee

“…A new half-mode frequency-tunable SIW (substrate-integrated waveguide) bandpass filter with a constant absolute bandwidth is presented in this paper. For…”
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Reconfigurable bandpass filter topology using cul-de-sac resonators with adjustable notches by Seunggoo Nam, Boyoung Lee, Juseop Lee

“…In this paper, we present a fully reconfigurable bandpass filter structure capable of controlling the center frequency, bandwidth, and notches in the stopband…”
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Positive-to-zero continuously tunable inter-resonator coupling structure for applications in filter array systems by Beyoungyoun Koh, Boyoung Lee, Seunggoo Nam, Juseop Lee

“…This paper presents a novel positive-to-zero continuously tunable inter-resonator coupling structure for high Q substrate-integrated waveguide resonators. Two…”
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Rigorous Design Method for Symmetric Reflectionless Filters With Arbitrary Prescribed Transmission Response by Lee, Jongheun, Lee, Boyoung, Nam, Seunggoo, Lee, Juseop

“…In this article, we present a novel generic reflectionless filter topology that can produce an arbitrary predefined transmission response while having the…”
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Third-Order Frequency-Agile Substrate-Integrated Waveguide Filter With a Pair of Transmission Zeros by Lee, Boyoung, Nam, Seunggoo, Lee, Tae-Hak, Lee, Juseop

“…In this letter, we present a third-order frequency-agile substrate-integrated waveguide (SIW) filter with a pair of transmission zeros. In addition, a…”
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Optimization-Free Design Equations for Narrowband Equal-Division Filtering Power Divider With Pre-Specified Filtering Response and Wideband Isolation by Lee, Boyoung, Nam, Seunggoo, Lee, Juseop

“…In this paper, we present completely analytic design equations for a narrowband filtering power divider with an excellent isolation performance over a wide…”
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Filtering Power Divider With Reflectionless Response and Wide Isolation at Output Ports by Lee, Boyoung, Nam, Seunggoo, Lee, Juseop

“…In this paper, we present a new filtering power divider structure that has a reflectionless response at the two output ports and excellent isolation…”
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