Abstract
The novel ridge-gap waveguide (RGW) technology which uses a full metal structure has many advantages in micro/mm-wave frequencies such as low loss, broad bandwidth, low sensitivity to manufacturing errors, and easy integration with active components, etc. In this paper, a Ku-band Gysel power divider (GPD) is proposed and experimentally demonstrated based on the RGW technology for the first time, to the best of our knowledge. An RGW-to-WR62 transition is also designed and fabricated. The proposed RGW-based GPD with WR62 transitions shows low-loss equal-power division in phase with good impedance matching and isolation in the Ku band. The measured results are in good agreement with the simulations. Besides, it is shown that the proposed structure can be used as a 3-way GPD with an unequal power splitting ratio. The proposed RGW-based GPD can be extended to a 2N-way power divider which can find applications in solid-state power amplifiers, array antenna feed networks, etc.
Highlights
Gysel power divider (GPD) was introduced by U
The proposed ridge gap waveguide (RGW)-based GPD can be extended to a 2N-way power divider
There is no significant difference between the designed GPD and traditional GPD except λ/4 lengths are replaced with 3λ/4, due to the periodic structure of RGW
Summary
Gysel power divider (GPD) was introduced by U. As it is clear from this figure, |S11| and |S22| are lower than -10 dB between 14.2 GHz and 18.2 GHz which shows that input and output ports are wellmatched. The simulated result of |S41| and |S51| shows very good isolation at the designed central frequency which is 16.2 GHz. Figure 14 shows the E-field distribution of the designed RGW-based GPD. The wave goes to port 5 has 180-degree phase difference with respect to those go to ports 1 and 4
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