2018
DOI: 10.1016/j.aeue.2018.08.024
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Ultra-wideband balun and power divider using coplanar waveguide to microstrip transitions

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Cited by 12 publications
(14 citation statements)
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“…The detailed equivalent circuit model for each of the slotline-to-microstrip transitions was presented in. 16,19 It can be shown that in the operating frequency band of the transition the equivalent circuit models of the microstrip and the slotline radial stubs can be neglected. Therefore, each of the slotline-to-microstrip transitions can be simply modeled by a transformer with turns ratio n that represents the magnetic coupling between the two TLs.…”
Section: Equivalent Circuit Modelmentioning
confidence: 99%
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“…The detailed equivalent circuit model for each of the slotline-to-microstrip transitions was presented in. 16,19 It can be shown that in the operating frequency band of the transition the equivalent circuit models of the microstrip and the slotline radial stubs can be neglected. Therefore, each of the slotline-to-microstrip transitions can be simply modeled by a transformer with turns ratio n that represents the magnetic coupling between the two TLs.…”
Section: Equivalent Circuit Modelmentioning
confidence: 99%
“…Figure 1 shows an illustration of the proposed ultrawideband Wilkinson power divider, which is developed based on the CPW-to-CPS transition presented in. 16 As shown in this figure, the CPW is on the top layer of the substrate, while the CPS is laid out on the backside of the substrate, and both lines are fed through coaxial connectors. Note that while the CPS consists of a pair of microstrip lines, a CPW can be either considered as a signal strip with two ground planes on both sides, or as a pair of slot lines.…”
Section: Introductionmentioning
confidence: 99%
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“…In this example, the balun topology is wideband and has an average isolation between output ports of 13 dB, but it suffers from relatively high phase and amplitude imbalances between output ports given as ±1.1 dB and ±8° respectively. In [5], CPW-slotline-microstrip power dividers are presented, both power dividers show amplitude and phase imbalance between output ports of ±1 dB and ±5° respectively over a 3 -16 GHz bandwidth; however, they suffer from poor isolation (around 10 dB) at output ports. And in [6], microstrip-slotlinemicrostrip power dividers are proposed, the power dividers operate between 4 and 45 GHz, but with poor isolation and matching at output ports, and the amplitude and phase imbalances are ±1 dB and ±7° respectively.…”
Section: Introductionmentioning
confidence: 99%
“…And in [6], microstrip-slotlinemicrostrip power dividers are proposed, the power dividers operate between 4 and 45 GHz, but with poor isolation and matching at output ports, and the amplitude and phase imbalances are ±1 dB and ±7° respectively. The poor matching and isolation between the output ports in [5] and [6] is a consequence of the fact that a 3-port device cannot be lossless, reciprocal and matched at all ports at the same time.…”
Section: Introductionmentioning
confidence: 99%