• Title/Summary/Keyword: Wilkinson power divider

Search Result 93, Processing Time 0.031 seconds

Design of Planar Power Divider Combiner for K-Band and Improvement of Impedence Matching Condition (K-밴드 평면형 Power Divider / Combiner와 정합특성에 관한 연구)

  • 나극환;홍의석;강준길;김춘길
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.14 no.6
    • /
    • pp.579-589
    • /
    • 1989
  • In this paper, planar power dividers/combiners for millimeter waves K-band or bands which can be printed on the substrates of hybrid or monolithic IC by surface mounting are designed and studied. Power dividers/combiners, and the conductor loss of microstrip lines in particualr the existing Wilkinson power dividers/combiners is modified ad amployes by ist equivalent circuit. Microwave CAD program SUPEROMPACT is employed for the Wilkinson power combiner which is modified and analyzed to reduce the high frequency coupling between the branches of the combiner, and the method to diminish the sensitivity of the input reflection of $2^n$-way power dividers/combiners is studied employing the commerical microwave CAD program package SUPERCOMPACT.

  • PDF

Design and EM Analysis of Dual Band Hilbert Curve Based Wilkinson Power Divider

  • Kaur, Avneet;Singh, Harsimran;Malhotra, Jyoteesh
    • Transactions on Electrical and Electronic Materials
    • /
    • v.17 no.5
    • /
    • pp.257-260
    • /
    • 2016
  • In this paper, two configurations (T-type and Y-type) of dual band Wilkinson Power Divider based upon Hilbert curves are presented. Formerly, the concept of Hilbert Curves was implemented in only designing microstrip antennas. In power dividers, this is the very first attempt of incorporating them for size reduction. In addition to this, an effect of inculcation of high-dielectric constant layer (Hafnium-oxide, HfO2, εr= 25) between a substrate and top metallization in both configurations was investigated. The proposed configurations are designed on a high resistive silicon substrate (HRS) for L and S bands with resonating frequencies of 1.575 and 3.4 GHz. Both configurations have return loss that is better than 20 dB and an insertion loss of around 6 dB; isolation better than 30 dB was achieved for both models.

Design and Fabrication of SMD Type Wilkinson Power Divider for PCS Basestation (PCS 기지국용 표면실장형 월킨슨 전력 분배기의 설계 및 제작)

  • 김종규;오환술
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.26 no.12B
    • /
    • pp.1747-1753
    • /
    • 2001
  • This paper describe the design and fabrication of a SMD type Wilkinson power divider for PCS basestation. It has been designed for commercial power amplifier system by HP-ADS and fabricated with the size 0.56 $\times$ 0.35 inches. As a result, the power divider was well-operated in the frequency ranges of 1.75 ∼ 1.98GHz for the application of PCS system. The power divider reveals insertion loss 0.2dB, isolation -19.8dB, amplitude balance 0.02dB, phase balance 0.5o, input and output impedance matching -20.6dB respectively.

  • PDF

Design Method of the Meander-Coupled Wilkinson Power Divider for L-band (미앤더(Meander) 결합 형태의 Wilkinson 전력 분배기 설계 방법)

  • 이영순;이창언;김선효;신철재
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
    • /
    • v.12 no.5
    • /
    • pp.676-685
    • /
    • 2001
  • In this paper, the design method of the meander-coupled Wilkinson power divider with slit is proposed. Because the electrical performance of this structure is varied with each coupling distance and the slit's size, a tedious design work, which is done by trial and error correction, is required to determine the values of parameters for the best suitable operation. To solve this problems, therefore, an experimental design formulas for optimum performance are presented by curve fitting, under the desired center frequency($f_0$). As the example using the proposed design equation, we designed and fabricated the meander-coupled divider at $f_0$=1.5 GHz. It has better electrical performance and measured results also agrees very well that of the simulated. From these observation, it can be concluded that the obtained design formulas are useful for design of this divider.

  • PDF

Design of Wide-Band 6-Port Network for Noise Parameter Measurement Using 3-Section Wilkinson Power Divider and Slot-Coupled Directional Coupler (3단 윌킨슨 전력분배기와 Slot-Coupled 방향성 결합기를 활용한 잡음 파라미터 측정용 광대역 6-포트 회로망의 설계)

  • Lee, Dong-Hyun;Lee, Chang-Dae;Lee, Chan-Woo;Yeom, Kyung-Whan
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
    • /
    • v.28 no.2
    • /
    • pp.85-96
    • /
    • 2017
  • In this paper, a 2~18 GHz wideband 6-port network is designed and fabricated to extend the measurement frequency bandwidth of noise parameter measurement method using 6-port network. In order to design a broadband 6-port network, a wilkinson power divider and a directional coupler with wideband characteristics are designed. The wilkinson power divider is designed as a three-section structure to achieve wideband characteristics. The direction coupler is designed as a three-section structure and slot-coupled structure using multi-layer substrate to obtain wideband characteristics. A wideband 6-port network is designed and fabricated combining the designed power divider and coupler. The measured results of the fabricated 6-port network for the 2~18 GHz band show characteristics applicable to the noise parameter measurement method.

An Unequal Dual-Band Lumped Element Power Divider (비대칭 이중대역 집중소자 전력분배기)

  • Yoo, Jae-Hyun;Kim, Young;Yoon, Young-Chul
    • Journal of Advanced Navigation Technology
    • /
    • v.15 no.4
    • /
    • pp.578-584
    • /
    • 2011
  • This paper presents the design and measured performances of an unequal dual-band power divider using lumped elements. After the divider is designed using the conventional single band Wilkinson topology with lumped elements, we obtained the dual band characteristics with filter conversion method. This design method has the features of compact size and easy fabrication, because the high impedance transmission line realizes the lumped elements of equivalent circuit. As an example, an 2:1 divider has been designed and measured at 880 MHz and 1650 MHz in order to show the validity of the proposed unequal divider. The measured performances of the unequal power divider agree with the simulation results.

Compact and Wideband Correlator with Metamaterial Hybrid Rat-Race Coupler (Metamaterial 하이브리드 Rat-Race Coupler를 이용한 소형화된 광대역 코릴레이터)

  • Kim, Yang-Hyun;Seo, Chul-Hun
    • Journal of the Institute of Electronics Engineers of Korea TC
    • /
    • v.46 no.2
    • /
    • pp.147-151
    • /
    • 2009
  • A wideband correlator, with 45% relative bandwidth is proposed at the frequency range of 3.1-5.1GHz. The structures of the correlator components such as the delay line and the Wilkinson power divider are designed to be realized in transmission line form using the Agilent's Advanced Design System (ADS). The correlator made by using three unique wideband 3-dB couplers, rat-race coupler and one 3-dB wilkinson power divider to reach the required bandwidth. The insertion loss, amplitude imbalance and phase imbalance between ports are presented. The proposed correlator makes compact size better than correlator of conventional structure.

Design of Miniaturized Wilkinson Power Divider Using Substrate Integrated Artificial Dielectric (기판적층형 가유전체를 이용한 소형화된 윌킨슨 전력분배기 설계)

  • Koo, Ja-Kyung;Lim, Jong-Sik;Ahn, Dal
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.10 no.7
    • /
    • pp.1542-1548
    • /
    • 2009
  • This paper describes a size-reduced Wilkinson power divider using substrate integrated artificial dielectric(SIAD). SIAD transmission lines have increased effective refractive index, so the line width and length are reduced from those of standard transmission lines. Therefore the "size-reduction effect" is achieved if SIAD lines are applied to high frequency circuits. An efficient simulation method is proposed for SIAD lines which have an enormous number of via-holes. A 2GHz Wilkinson power divider is designed and measured using SIAD transmission line as an example of application. The size of the fabricated divider is reduced by 32% due to the increased effective refractive index of SIAD, while the performances are maintained similarly.

An Unequal Power Divider with Adjustable Dividing Ratio (가변 분배 비율 비대칭 전력 분배기)

  • Lim, Jong-Sik;Oh, Seong-Min;Koo, Jae-Jin;Jeong, Yong-Chae;Ahn, Dal
    • The Journal of Korean Institute of Electromagnetic Engineering and Science
    • /
    • v.18 no.5 s.120
    • /
    • pp.478-485
    • /
    • 2007
  • In this paper, an unequal 1:N Wilkinson power divider with adjustable dividing ratio is proposed. The proposed unequal power divider is composed of basic Wilkinson structure. It consists of rectangular-shaped defected ground structure (DGS), isolated island pattern in DGS, and varactor diodes of which capacitance depends on bias voltage. The characteristic impedance value of microstrip line having DGS goes up and down by controlling bias voltage for diodes, and consequently the power dividing ratio(N) is adjusted. The obtained N from measurement is $2.59{\sim}10.4$ which mean the proposed divider has adjustable unequal dividing ratio.

Unequal Dual-band Wilkinson Power Divider (비대칭 이중대역 전력분배기)

  • Kim, Byung-Chul;Lee, Soo-Jung;Kim, Young
    • Journal of Digital Convergence
    • /
    • v.12 no.4
    • /
    • pp.343-348
    • /
    • 2014
  • This paper suggested a theoretical approach and an implementation for the design of an unequal Wilkinson power divider with a high dividing ratio operating at two-frequencies. The T-section transmission lines and the two-section of Monzon's theory are proposed to operate a dual-band application. To achieve the high dividing ratio divider, the high impedance line using a T-shaped structure and low impedance lines with periodic shunt open stubs are implemented. For the validation of this divider, a dual-band power divider with a high dividing ratio of 5 is simulated and measured at 1 GHz and 2 GHz. The measured performances of the divider are in good agreements with simulation results.