Dong Yun Jung

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A V-band frequency doubler monolithic microwave integrated circuit with a current re-use buffer amplifier is presented. The circuit is designed and fabricated using 0.13 mum CMOS technology. The buffer amplifier uses a current re-use topology, which adopts series connection of two common source amplifiers for low dc power consumption. The suppression of the(More)
This paper demonstrates a low loss fully embedded multilayer bandpass filter (BPF) using low-temperature cofired ceramic (LTCC) technology for 3-D integration of 40-GHz multimedia wireless system (MWS) radio. The LTCC filter implemented in a stripline configuration occupies an area of only 5.5 times 2.3 times 0.6 mm including shielding structure and(More)
This paper presents effects of a resonator output load line on the performance of an oscillator. To verify the effects, we designed three low temperature co- fired ceramic (LTCC) circular resonators to fabricate three different Ka-band oscillators. The output load line of the resonator connecting a negative resistance generator monolithic microwave(More)
A low power single-chip CMOS receiver and system-on-package(SoP) in the low-temperature co-fired ceramic (LTCC) module for 60GHz mobile application are proposed. The single-chip receiver consists of a 4-stage current re-use LNA, C<inf>gs</inf> compensating resistive mixer, Ka-band low phase noise VCO, high-suppression frequency doubler, and 2-stage current(More)
This paper proposes a simple low-temperature co-fired ceramic (LTCC) integrated transmitter using sub-harmonic amplitude shift-keying modulation for 60-GHz wireless communications applications. The transmitter system-on-package (SoP) has been monolithically implemented with a six-layer LTCC block embedding a resonator, modulator, and antenna and two active(More)
In this work, the first &#x03BC;-strip 60GHz Rotman lens and new compact low loss strip delay line using low temperature co-fired ceramic(LTCC) are proposed. The lens has 3 steering capability for +26&#x00B0;, &#x2212;26&#x00B0;, 0.1&#x00B0; angle, &#x2212; 10.86dB of side lobe level(SLL), and 28&#x00B0; of half power beam width (HPBW). The Rotman lens is(More)
This paper proposes a low loss and broadband grounded coplanar waveguide (GCPW) to waveguide (WG) transition in a low temperature co-fired ceramic (LTCC) multi-layer structure for 60GHz applications. The GCPW and WG are fully integrated on the same substrate, and the ground wall of the embedded WG is made up of a staggered via fence. A 3&#x03BB;/4 bent(More)
A 60GHz surface wave reduced type antenna is presented which can be used in a 3D system in package (SiP) with a low temperature co-fired ceramic (LTCC) substrate. Using a simple magnetic current model, we derive the surface wave reduction condition of our design and show that the LTCC substrate has a very similar condition to the derived condition. Using(More)
An SMD type balun with a frequency range from 10 GHz to 25 GHz in a low temperature co-fired ceramic (LTCC) substrate is designed and measured. To reduce the effect of misalignment in the multilayer coupler, we propose a novel multilayer coupler structure which is insensitive to misalignment. The package has ports on the ground plane for the SMT, and a(More)
For V-band applications, this paper presents a fully embedded multi-layer dielectric waveguide filter (DWGF) with very low insertion loss and small size, which does not need any more assemblies such as flip-chip bonding and bond wires. The top and bottom plane are grounded, and therefore, although we make a metal housing, there will be no resonance(More)