Diabetes Insipidus: To Treat or Not to Treat?
No abstract prepared.
62 RADIOLOGY AND NUCLEAR MEDICINE↗
Engineering topics
Nguyen, Cam
Publications and source records attributed to Nguyen, Cam.
Lung Mass With Massive Hemoptysis: Treatment Without Tissue Diagnosis
No abstract prepared.
62 RADIOLOGY AND NUCLEAR MEDICINE↗
A new rectenna circuit using a bow-tie antenna for the conversion of microwave power to dc power
The novel rectenna circuit presented, which integrated a bowtie antenna with a diode, is capable of broadband, high-efficiency operation, and is insensitive to incident field angle. The device is noted, moreover, to behave as a lowpass filter for dc output. For 2.45 GHz operation, a 79-percent conversion efficiency has been demonstrated.
Tran, Michael↗
Broadside-coupled coplanar waveguides and their end-coupled band-pass filter applications
New broadside-coupled coplanar waveguides, suitable for applications requiring wide bandwidths, tight couplings, and large mode effective-dielectric-constant ratios, are presented. Their analysis and investigation are described. Simple equations relating the per-unit-length capacitances of the c- and pi-modes and the per-unit-length capacitance matrices of the coupled structures to those obtained when applying even- and odd-symmetric voltages are also derived. New broadside end-coupled band-pass filters have been developed at X-band (8-12 GHz) with less than 1.5 and 1.0 dB passband insertion losses using the proposed four-ground-plane and two-ground-plane coplanar waveguide structures, respectively. Good agreement between the experimental results and those predicted theoretically was also observed.
Nguyen, Cam↗