The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Untuk merealisasikan penapis laluan jalur ultra-lebar (UWB) padat, prototaip penapis baru dengan dua stub litar pintas yang dimuatkan pada kedua-dua belah resonator impedans berperingkat (SIR) melalui garis gandingan selari dicadangkan berdasarkan teori sintesis penapis teragih. . Litar setara penapis ini diwujudkan, manakala fungsi pemindahan jenis Chebyshev 7 kutub yang sepadan diperoleh untuk sintesis penapis. Kemudian, teknik berasaskan litar teragih telah dibentangkan untuk mensintesis nilai elemen penapis ini. Sebagai contoh, penapis FCC UWB dengan lebar jalur pecahan (FWB) @ -10 dB sehingga 110% telah direka bentuk menggunakan prototaip yang dicadangkan dan kemudian dimodelkan semula oleh simulator litar gelombang mikro komersial untuk mengesahkan ketepatan dan ketepatan teori sintesis. Tambahan pula, dari segi simulator EM, penapis telah dioptimumkan lagi dan direalisasikan secara eksperimen dengan menggunakan garis jalur mikro. Persetujuan yang baik antara keputusan pengukuran dan yang teoritikal mengesahkan keberkesanan teknik kami. Di samping itu, berbanding dengan penapis UWB jenis SIR konvensional tanpa stub litar pintas, yang baharu meningkatkan selektiviti dan ciri luar jalur dengan ketara (terutamanya dalam satu yang lebih rendah -45 dB@1-2 GHz) untuk memenuhi FCC topeng spektrum. Penapis yang direka juga mempamerkan saiz yang sangat padat, kehilangan sisipan yang agak rendah, skirt curam, kelewatan kumpulan rata dan struktur yang mudah dibuat (dimensi jurang gandingan dalam penapis ini ialah 0.15 mm) juga. Selain itu, perlu diingatkan bahawa, dari segi teknik reka bentuk yang dibentangkan, prototaip penapis yang dicadangkan juga boleh digunakan untuk merealisasikan penapis UWB dengan mudah dengan FBW lain yang lebih besar daripada 110%.
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Salinan
Chun-Ping CHEN, Zhewang MA, Tetsuo ANADA, "Novel Compact Ultra-Wideband Bandpass Filter by Application of Short-Circuited Stubs and Stepped-Impedance-Resonator" in IEICE TRANSACTIONS on Electronics,
vol. E91-C, no. 11, pp. 1786-1792, November 2008, doi: 10.1093/ietele/e91-c.11.1786.
Abstract: To realize the compact ultra-wideband (UWB) bandpass filters, a novel filter prototype with two short-circuited stubs loaded at both sides of a stepped-impedance resonator (SIR) via the parallel coupled lines is proposed based on a distributed filter synthesis theory. The equivalent circuit of this filter is established, while the corresponding 7-pole Chebyshev-type transfer function is derived for filter synthesis. Then, a distributed-circuit-based technique was presented to synthesize the elements' values of this filter. As an example, a FCC UWB filter with the fractional bandwidth (FWB) @ -10 dB up to 110% was designed using the proposed prototype and then re-modeled by commercial microwave circuit simulator to verify the correctness and accuracy of the synthesis theory. Furthermore, in terms of EM simulator, the filter was further-optimized and experimentally-realized by using microstrip line. Good agreements between the measurement results and theoretical ones validate the effectiveness of our technique. In addition, compared with the conventional SIR-type UWB filter without short-circuited stubs, the new one significantly improves the selectivity and out-of-band characteristics (especially in lower one -45 dB@1-2 GHz) to satisfy the FCC's spectrum mask. The designed filter also exhibits very compact size, quite low insertion loss, steep skirts, flat group delay and the easily-fabricatable structure (the coupling gap dimension in this filter is 0.15 mm) as well. Moreover, it should be noted that, in terms of the presented design technique, the proposed filter prototype can be also used to easily realize the UWB filters with other FBW even greater than 110%.
URL: https://global.ieice.org/en_transactions/electronics/10.1093/ietele/e91-c.11.1786/_p
Salinan
@ARTICLE{e91-c_11_1786,
author={Chun-Ping CHEN, Zhewang MA, Tetsuo ANADA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Novel Compact Ultra-Wideband Bandpass Filter by Application of Short-Circuited Stubs and Stepped-Impedance-Resonator},
year={2008},
volume={E91-C},
number={11},
pages={1786-1792},
abstract={To realize the compact ultra-wideband (UWB) bandpass filters, a novel filter prototype with two short-circuited stubs loaded at both sides of a stepped-impedance resonator (SIR) via the parallel coupled lines is proposed based on a distributed filter synthesis theory. The equivalent circuit of this filter is established, while the corresponding 7-pole Chebyshev-type transfer function is derived for filter synthesis. Then, a distributed-circuit-based technique was presented to synthesize the elements' values of this filter. As an example, a FCC UWB filter with the fractional bandwidth (FWB) @ -10 dB up to 110% was designed using the proposed prototype and then re-modeled by commercial microwave circuit simulator to verify the correctness and accuracy of the synthesis theory. Furthermore, in terms of EM simulator, the filter was further-optimized and experimentally-realized by using microstrip line. Good agreements between the measurement results and theoretical ones validate the effectiveness of our technique. In addition, compared with the conventional SIR-type UWB filter without short-circuited stubs, the new one significantly improves the selectivity and out-of-band characteristics (especially in lower one -45 dB@1-2 GHz) to satisfy the FCC's spectrum mask. The designed filter also exhibits very compact size, quite low insertion loss, steep skirts, flat group delay and the easily-fabricatable structure (the coupling gap dimension in this filter is 0.15 mm) as well. Moreover, it should be noted that, in terms of the presented design technique, the proposed filter prototype can be also used to easily realize the UWB filters with other FBW even greater than 110%.},
keywords={},
doi={10.1093/ietele/e91-c.11.1786},
ISSN={1745-1353},
month={November},}
Salinan
TY - JOUR
TI - Novel Compact Ultra-Wideband Bandpass Filter by Application of Short-Circuited Stubs and Stepped-Impedance-Resonator
T2 - IEICE TRANSACTIONS on Electronics
SP - 1786
EP - 1792
AU - Chun-Ping CHEN
AU - Zhewang MA
AU - Tetsuo ANADA
PY - 2008
DO - 10.1093/ietele/e91-c.11.1786
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E91-C
IS - 11
JA - IEICE TRANSACTIONS on Electronics
Y1 - November 2008
AB - To realize the compact ultra-wideband (UWB) bandpass filters, a novel filter prototype with two short-circuited stubs loaded at both sides of a stepped-impedance resonator (SIR) via the parallel coupled lines is proposed based on a distributed filter synthesis theory. The equivalent circuit of this filter is established, while the corresponding 7-pole Chebyshev-type transfer function is derived for filter synthesis. Then, a distributed-circuit-based technique was presented to synthesize the elements' values of this filter. As an example, a FCC UWB filter with the fractional bandwidth (FWB) @ -10 dB up to 110% was designed using the proposed prototype and then re-modeled by commercial microwave circuit simulator to verify the correctness and accuracy of the synthesis theory. Furthermore, in terms of EM simulator, the filter was further-optimized and experimentally-realized by using microstrip line. Good agreements between the measurement results and theoretical ones validate the effectiveness of our technique. In addition, compared with the conventional SIR-type UWB filter without short-circuited stubs, the new one significantly improves the selectivity and out-of-band characteristics (especially in lower one -45 dB@1-2 GHz) to satisfy the FCC's spectrum mask. The designed filter also exhibits very compact size, quite low insertion loss, steep skirts, flat group delay and the easily-fabricatable structure (the coupling gap dimension in this filter is 0.15 mm) as well. Moreover, it should be noted that, in terms of the presented design technique, the proposed filter prototype can be also used to easily realize the UWB filters with other FBW even greater than 110%.
ER -