Design of the double-y balun for use in GPR applications

Venkatesan, J.; Scott, Waymond R.

doi:10.1117/12.542770

Cited by 6 publications

(6 citation statements)

References 6 publications

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“…On high permittivity substrates, the size of the structures can be reduced, but the losses will be higher [33]. A different type of printed circuit balun is the double-Y balun (DBY) proposed by Trifunovic and Jokanovic [29,34] and further investigated by Venkatesan and Scott for their use in feeding antennas [14] and applications in GPR [35]. The DBY balun consists of a central junction, three balanced ports and three unbalanced ports.…”

Section: Summary Of Balun Designs For Gpr Antennasmentioning

confidence: 99%

“…Impedance transformation can be achieved by choosing different impedance values for the CPW and CPS sections. It has been reported that the bandwidth of the double-Y balun depends on the length of the stubs in the double-Y section [35]. In particular, when the input and output impedances differ, there exists a resonance when the length of these stubs equals λ/8 [14,35], which sets the upper frequency limit.…”

Section: Summary Of Balun Designs For Gpr Antennasmentioning

confidence: 99%

“…It has been reported that the bandwidth of the double-Y balun depends on the length of the stubs in the double-Y section [35]. In particular, when the input and output impedances differ, there exists a resonance when the length of these stubs equals λ/8 [14,35], which sets the upper frequency limit. Despite this, Venkatesan et al [35] described a double-Y balun with a bandwidth of close to 6 GHz.…”

Section: Summary Of Balun Designs For Gpr Antennasmentioning

confidence: 99%

“…In particular, when the input and output impedances differ, there exists a resonance when the length of these stubs equals λ/8 [14,35], which sets the upper frequency limit. Despite this, Venkatesan et al [35] described a double-Y balun with a bandwidth of close to 6 GHz. An additional resonance can be caused by currents on the ground conductors of the input line.…”

Section: Summary Of Balun Designs For Gpr Antennasmentioning

confidence: 99%

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A Review of Passive and Active Ultra-Wideband Baluns for Use in Ground Penetrating Radar

et al. 2021

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Microwave ultra-wideband technology has been widely adopted in instrumentation and measurement systems, including ground-penetrating radar (GPR) sensors. Baluns are essential components in these systems to feed balanced antennas from unbalanced feed cables. Baluns are typically introduced to avoid issues with return signals, asymmetrical radiation patterns and radiation from cables. In GPR systems, these issues can cause poor sensitivity due to a reduction in radiated power, blind spots due to changes in the radiation pattern and additional clutter from common mode radiation. The different balun technologies currently available exhibit a wide variation in performance characteristics such as insertion loss, reflection coefficient and phase balance, as well as physical properties such as size and manufacturability. In this study, the performance of two magnetic transformer baluns, two tapered microstrip baluns and an active balun based on high-speed amplifiers were investigated, all up to frequencies of 6 GHz. A radio frequency current probe was used to measure the common mode currents on the feed cables that occur with poor performing baluns. It was found that commercially available magnetic transformer baluns have the best phase linearity, while also having the highest insertion losses. The active balun design has the best reflection coefficient at low frequencies, while, at high frequencies, its performance is similar to the other baluns tested. It was found that the active balun had the lowest common mode current on the feed cables.

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Section: Summary Of Balun Designs For Gpr Antennasmentioning

confidence: 99%

Section: Summary Of Balun Designs For Gpr Antennasmentioning

confidence: 99%

Section: Summary Of Balun Designs For Gpr Antennasmentioning

confidence: 99%

Section: Summary Of Balun Designs For Gpr Antennasmentioning

confidence: 99%

See 2 more Smart Citations

A Review of Passive and Active Ultra-Wideband Baluns for Use in Ground Penetrating Radar

et al. 2021

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“…It has various realizations with the same equivalent circuit as the transmission lines differ. Previous researches have investigated double-Y balun theoretically [7,8] and practically [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

A 60-GHz on-chip tapered slot Vivaldi antenna with improved radiation characteristics

El-Hameed

Mahmoud

Barakat

et al. 2016

2016 10th European Conference on Antennas and Propagation (EuCAP)

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This paper presents a design of 60-GHz exponential tapered slot Vivaldi antenna-on-chip (AOC). The antenna is designed using standard 0.18µm six metal-layers CMOS technology. A double-Y balun feeding structure is used to make transition from coplanar waveguide to slot-line. Two techniques are investigated for improving antenna radiation properties. The first technique incorporates equal corrugations on the edges of exponential flaring section and other on the backed-edge of antenna to enhance the antenna gain. Second, a planar arc reflector is constructed using metal vias between M6 and M1 to inhibit the back lobe, contributing to the enhancement of gain and efficiency. The overall antenna size is compact and equal to 785µm×930µm. The influence of the antenna position on the radiation properties is also studied. The proposed antenna offers endfire radiation pattern with a simulated peak gain and a radiation efficiency of -0.4 dBi and 32%, respectively.

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Microstrip to coplanar strip double-Y balun with very high upper frequency limitation

2014

Proceedings of 2014 3rd Asia-Pacific Conference on Antennas and Propagation

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Double-Y balun is a kind of printed balun with ultra wide bandwidth, which can also realize transformation from different sorts of printed transmission lines and has been widely used in wideband mixer and ultra-wideband antennas. This paper researched on some elements that influent the upper frequency limitation of double-Y balun in practical engineering and presented a design of double-Y balun transition from microstrip line to coplanar strip line (CPS) with pass band up to 18GHz. The design also included a Microstrip impedance transformer as this design is to feed a 100 vivaldi antenna. The VSWR of whole component was less then 1.5 and insert loss 2dB in a bandwidth of over 1: 18.

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Design of the double-y balun for use in GPR applications

Cited by 6 publications

References 6 publications

A Review of Passive and Active Ultra-Wideband Baluns for Use in Ground Penetrating Radar

A Review of Passive and Active Ultra-Wideband Baluns for Use in Ground Penetrating Radar

A 60-GHz on-chip tapered slot Vivaldi antenna with improved radiation characteristics

Microstrip to coplanar strip double-Y balun with very high upper frequency limitation

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