Broadband compact rat-race hybrid and its application to mixers

Yang, Yongjie; Chen, J.-X.; Bao, Zhihua

doi:10.1049/iet-map.2009.0535

Cited by 9 publications

(8 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Table 1 summarizes the performance of the proposed mixer compared with those of some recently reported mixers. The proposed mixer clearly exhibits better overall performance than the previously published mixers [7][8][9][10], especially in term of conversion loss, size reduction, and bandwidth performance.…”

Section: Uwb Mixermentioning

confidence: 86%

“…Various studies have been conducted to improve the bandwidth performance of the mixers [4][5][6][7][8][9][10]. To construct a balanced mixer, a well-designed broadband balun with inherent isolation, cancelation of local oscillator (LO) noise, low intermodulation products, and good conversion efficiency was reDesign of A Compact Single-Balanced Mixer for UWB Applications commended.…”

Section: Introductionmentioning

confidence: 99%

“…To construct a balanced mixer, a well-designed broadband balun with inherent isolation, cancelation of local oscillator (LO) noise, low intermodulation products, and good conversion efficiency was reDesign of A Compact Single-Balanced Mixer for UWB Applications commended. Broadband hybrid couplers as mixer baluns were implemented with a combination of different kinds of transmission lines, such as coplanar waveguide and slot line [5], Gilbert cell [6], substrate integrated waveguide (SIW) couplers [7,8], and multi-layer ring hybrid [9]. In [7,8], SIW couplers were utilized to design single-balanced mixers.…”

Section: Introductionmentioning

confidence: 99%

“…However, these mixers with SIW couplers exhibited high conversion losses because of high leakage related to the required vias. In [9], a low conversion loss was achieved by using a high-performing multi-layer ring coupler. However, the design and implementation of these types of balanced mixers were complicated, thus causing a high cost for fabrication.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Design of A Compact Single-Balanced Mixer for UWB Applications

Mohyuddin¹,

Kim²,

Choi³

et al. 2017

Journal of electromagnetic engineering and science

View full text Add to dashboard Cite

The design and implementation aspects of a new single-balanced mixer for ultra-wideband (UWB) applications are presented in this study. The proposed mixer utilizes a miniaturized UWB ring coupler as a balun, consisting of a pair of in-phase and inverted-phase transitional structures. The well-balanced UWB performance of the ring coupler, aside from the optimized diode matching, results in improved conversion loss and inter-port isolations for a wide bandwidth. The size of the implemented single-balanced diode mixer is reduced to about 60% of the area of the conventional single-balanced ring diode mixer. The measured results of the proposed mixer exhibit an average conversion loss of 7.5 dB (minimum 6.7 dB) and a port-to-port isolation of greater than 18 dB over a UWB frequency range of 3.1-10.6 GHz. The measured results agree well with the simulated results. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. ⓒ

show abstract

Section: Uwb Mixermentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Design of A Compact Single-Balanced Mixer for UWB Applications

Mohyuddin¹,

Kim²,

Choi³

et al. 2017

Journal of electromagnetic engineering and science

View full text Add to dashboard Cite

show abstract

“…On the other hand, the transformers , substrate integrated waveguide (SIW) couplers , Gilbert‐cell , and Marchand baluns were also utilized. The single‐balanced diode mixers adopting a ring (rat‐race) hybrid coupler as a balun demonstrated good linearity and port‐to‐port isolations . Refs.…”

Section: Introductionmentioning

confidence: 99%

A compact wideband ring mixer utilizing a pair of PLANAR transitions for phase inversion

Mohyuddin

Kim²,

Woo

et al. 2014

Microw. Opt. Technol. Lett.

View full text Add to dashboard Cite

A new design of a compact wideband ring mixer is introduced in this article. The proposed mixer utilizes a compact ring structure comprising a pair of ultra‐wideband planar in‐phase and inverted‐phase transitions as a mixer balun. The implemented mixer has a number of desirable features such as wide bandwidth (∼120%), compact size, excellent port‐to‐port isolations, and return loss. The size of the proposed mixer is 33.2% of the conventional single‐balanced ring mixers. The measured results show flat conversion loss of ∼8.5 dB and greater than 20 dB port‐to‐port isolation from 3 to 12 GHz. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1919–1922, 2014

show abstract

Miniaturized wide-band rat-race coupler

Taravati

2012

Int J RF and Microwave Comp Aid Eng

View full text Add to dashboard Cite

New designs of wide‐band rat‐race couplers are proposed. The wide‐band operation is achieved with the use of the microstrip nonuniform transmission line sections for the branches of the conventional rat‐race coupler. The design formulas are developed using ABCD matrix and the even‐ and odd‐mode analysis. The theoretical analysis has been verified by measurements of the two manufactured wideband rat‐race couplers, one operate within 0.85–1.92 GHz and other within 1.55–3.55 GHz frequency range with the equal normalized characteristic impedance functions. For both fabricated couplers, the isolation parameter is better than 15 dB over a 77% relative bandwidth. Also, it is shown that the designed wide‐band rat‐race coupler can be realized in higher frequency bands with the fixed fractional bandwidth. © 2012 Wiley Periodicals, Inc. Int J RF and Microwave CAE 23: 675–681, 2013.

show abstract

Broadband compact rat-race hybrid and its application to mixers

Cited by 9 publications

References 15 publications

Design of A Compact Single-Balanced Mixer for UWB Applications

Design of A Compact Single-Balanced Mixer for UWB Applications

A compact wideband ring mixer utilizing a pair of PLANAR transitions for phase inversion

Miniaturized wide-band rat-race coupler

Contact Info

Product

Resources

About