Title:	A modified branch line coupler with ultra-wide harmonics rejection using resonators and open- ended stubs
Authors:	Jamshidi, Mohammad Roshani, Sobhan Talla, Jakub Mohammadi, Maryam Sadat Roshani, Saeed Peroutka, Zdeněk
Citation:	JAMSHIDI, M. ROSHANI, S. TALLA, J. MOHAMMADI, MS. ROSHANI, S. PEROUTKA, Z. A modified branch line coupler with ultra-wide harmonics rejection using resonators and open- ended stubs. In Proceedings of 2021 IEEE 12th Annual Ubiquitous Computing, Electronics & Mobile Communication Conference (IEEE UEMCON). Piscaway: IEEE, 2021. s. 860-865. ISBN: 978-1-66540-690-1
Issue Date:	2021
Publisher:	IEEE
Document type:	konferenční příspěvek ConferenceObject
URI:	http://hdl.handle.net/11025/47092
ISBN:	978-1-66540-690-1
Keywords in different language:	modified branch line coupler;ultra-wide harmonics rejection;microwave components
Abstract in different language:	In this paper, a modified microstrip branch-line coupler (BLC) at 1.6 GHz is designed and simulated. The proposed BLC consists of open stubs and resonators together. The designed BLC correctly works at the operating frequency and suppresses 2nd up to 13th unwanted harmonics. The applied resonator in the BLC structure has a small size of 0.15λg×0.081λg with a 1.8 GHz main frequency. This applied resonator has a sharp response in the transition band and provides a sharp roll of the rate of 185 dB/GHz. The proposed BLC has good performance at 1.6 GHz, the insertion loss parameter is 0.3 dB, whereas |S14| and |S11| are more than 20 dB. Moreover, the proposed BLC provides an ultrawide rejection band of 2 - 20 GHz.
Rights:	Plný text je přístupný v rámci univerzity přihlášeným uživatelům. © IEEE
Appears in Collections:	Konferenční příspěvky / Conference Papers (KEV) Konferenční příspěvky / Conference papers (RICE) OBD

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