A Compact Dual-Band Coupler With Coupled Microstrip–Slotlines

Chu, Peng; Zhu, Fang; Fan, Kuikui; Luo, Guo Qing; Wu, Ke

doi:10.1109/lmwc.2021.3126698

Cited by 5 publications

(3 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Choosing θ 1 = 60°, we can obtain θ 2 = 60°, Z e1 = 65.0 Ω, Z o1 = 21.67 Ω, Z e2 = 79.62 Ω, and Z o2 = 26.54 Ω. The initial dimensions of the proposed coupler can be determined by the characteristic impedance analysis of the CMSL, 30 which is simulated using HFSS, and then the whole structure is optimized to satisfy the required performance. The final dimensions of the dual‐band coupler are: L m1 = 8.52, L s1 = 8.62, W m1 = 3.09, W s1 = 0.52, L m2 = 8.74, L s2 = 9.07, W m2 = 1.85, W s2 = 0.47, L m3 = 9, W 3 = 0.65, and W 4 = 1.2 (unit: mm).…”

Section: Resultsmentioning

confidence: 99%

“…With the development of wireless communication technologies, the requirement for dual‐band or multiband transceivers has been growing rapidly. In recent years, a lot of research efforts have been focused on dual‐band passive components, including antennas, 1 power dividers/combiners, 2,3 bandpass filters, 4 and directional couplers 5–30 …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A compact dual‐band coupled‐microstrip‐slotline coupler with arbitrary power division ratios

Chu

Zhu

2022

Micro & Optical Tech Letters

Self Cite

View full text Add to dashboard Cite

In this paper, a novel dual-band coupler with arbitrary power division ratios using coupled-microstrip-slotlines (CMSLs) is proposed. It consists of only four CMSL sections and occupies a small circuit area due to the centric arrangement of the excitation ports. Different from the microstrip implemented edge-coupled-line, the odd and even modes of the CMSL are physically separated, this feature enables the compensation of their phase velocities, facilitates the control of their characteristic impedances, and reduces the design complexity of the dual-band coupler. Explicit design formula for the proposed coupler is developed. To verify the proposed concept, a dual-band CMSL coupler with an unequal power division ratio is designed and characterized.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A compact dual‐band coupled‐microstrip‐slotline coupler with arbitrary power division ratios

Chu

Zhu

2022

Micro & Optical Tech Letters

Self Cite

View full text Add to dashboard Cite

show abstract

“…The even-odd mode analysis technique is used in [10][11][12]. This coupler design technique typically includes coupled lines which makes the couplers less flexible in terms of operating frequency bands, since the distance between the lines limits the frequency band ratio [10,11]. In [12], no coupled lines are present, but the design process is very complex in nature.…”

Section: Introductionmentioning

confidence: 99%

A Low-profile Dual-band Hybrid Coupler with Flexible Frequency Band Ratio

Naseri¹,

PourMohammadi²,

Mousavirazi³

et al. 2022

PIER Letters

View full text Add to dashboard Cite

In this paper, a new method is introduced to design a simple-profile hybrid coupler in two arbitrary frequency bands. The structure is achieved by means of dual-band quarter-wavelength transformers as the arms of a traditional branch line coupler. A prototype of the coupler operating at 0.9 GHz and 2.45 GHz is designed and fabricated to validate the robustness of the method. Comparing simulated with measured results, a good agreement is observed. Moreover, the performance of the coupler in terms of impedance bandwidth and isolation level between the input ports is compared with existing works. Further, the suggested coupler has the simplest profile resulting from the most flexible design process.

show abstract

High-directivity and compact microstrip coupler for RF power applications

Chan

Chang

2023

Review of Scientific Instruments

View full text Add to dashboard Cite

A microstrip coupler was designed, fabricated, and tested to monitor the power of the 500 MHz kW-level amplifier modules currently installed in an 80-kW solid-state transmitter. The proposed coupler consists of multi-section coupled lines and employs a reverse-coupling scheme, achieving a very compact structure. The dual-side configuration with good termination enables the coupler to have high directivity and wide bandwidth without using any lump components for better temperature stability. Under a low-power test, the measured coupling is 37.69 dB with high directivity from 82 to 700 MHz. The coupling is almost independent of the power at 499.65 MHz, while the directivity slightly decreases to 33.85 dB at the input power of 1 kW. The maximal insertion loss of 0.08 dB was observed at 1-kW input power. The proposed directional coupler suits many high-power applications, especially in low-frequency regimes.

show abstract

A Compact Dual-Band Coupler With Coupled Microstrip–Slotlines

Cited by 5 publications

References 23 publications

A compact dual‐band coupled‐microstrip‐slotline coupler with arbitrary power division ratios

A compact dual‐band coupled‐microstrip‐slotline coupler with arbitrary power division ratios

A Low-profile Dual-band Hybrid Coupler with Flexible Frequency Band Ratio

High-directivity and compact microstrip coupler for RF power applications

Contact Info

Product

Resources

About