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The Fund seeks a high level of income exempt from federal income tax by investing at least 80% of its net assets, plus any borrowings, in municipal bonds. The Fund invests, under normal market ...

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Abstract: Metal hybrid waveguide couplers, which are crucial passive structures in terahertz (THz) in-phase-quadrature (IQ) mixers, have raised significant attention in the development of high-speed ...

The investment seeks a high level of income exempt from federal income tax. The fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in municipal ...

Abstract: This letter proposes a novel compact coupler with simultaneously and continuously tuned frequency, output differential phase, and power-dividing ratio (PDR). In addition to multifunctionally ...

Smyrna, Tennessee-based clamps manufacturer Ideal Tridon Group has acquired Advanced Couplings Limited (ACL), the company announced April 5. Financial details of the transaction were not disclosed.

Fund Summary The fund invests at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in municipal bonds that pay interest exempt from federal income tax. Under ...