A Novel Power Divider Integrated With Siw and DGS Technology

Abstract

Abstract-In this paper, a novel power divider integrated with substrate integrated waveguide (SIW) and defected ground structures (DGS) techniques is proposed to provide both power dividing and filtering functions. The SIW technique holds advantages of low profile, low-lost, mass-production, easy fabrication and fully integration with planar circuits. By integrating with defected ground structures (DGS) technique, the size and cost of system can be effectively reduced as the proposed power divider has a function of filtering which leads to reduction of one filter. In order to verify the design approach, the proposed power divider with equal power divisions at the center frequency of 8.625 GHz is fabricated and measured. The measured results demonstrate that the insertion loss is less than 1.2 dB and the input return loss less than 16 dB across the bandwidth of 1.4 GHz (FBW is 16%). Moreover, the imbalances of the amplitude and phase are less than 0.3 dB and 0.5 degree, respectively.

Compact Filtering Power Divider Based on Half Mode Substrate Integrated Waveguide

“…In this table, the advantages in fractional bandwidth and insertion loss are very obvious. Furthermore, the proposed filtering HMSIW PD has a size of 1.04 × 0.78λ 2 g , which is much more compact than that in [14][15][16][17]. Also, compared with the reported circuit in [17], a size reduction of 42% is achieved.…”

“…The combination of both functionalities provides a circuit with benefits of low loss, low cost, and compact size. Several PDs based on SIW and HMSIW have been investigated [10][11][12][13][14][15][16][17]. However, the proposed circuits in [10][11][12][13][14] do not include the bandpass filtering response, which restricts their applications in practical systems.…”

“…This circuit uses magnetic coupling by via-hole coupling window and has large size. In [17], a PD integrated with SIW and defected ground structures (DGS) techniques is presented. The reported filtering PDs in [15][16][17] are not proper to design at high frequencies due to the limitation of via-holes fabrication [18].…”

A Novel Multi-Way Power Divider Design With Arbitrary Complex Terminated Impedances

“…Many efforts have been made to enhance its performance, such as ultrawideband and broadband power divider [2][3][4][5], tri-band or integrated with substrate integrated waveguide (SIW) and defected ground structure (DGS) technology power dividers [6,7], compact coupledline and stepped-impedance transmission lines dual-band Wilkinson power dividers [8,9], and dual-band unequal Wilkinson power divider using asymmetric coupled-line [10]. More than that, Bagley Polygon power divider (BPPD) has no lumped elements, such as resistors, and can be easily extended to any number of output ports [11][12][13][14][15][16][17][18][19].…”

Novel Filtering Power Divider Using Multiple Internal Resistors

“…In many applications, the power dividers and bandpass filters usually need to be connected up to divide and filter signals [1][2][3][4][5]. In order to further reduce circuit size and manufacturing cost, it is beneficial to integrate them into a single component.…”