Meru Networks Inc., a Sunnyvale, Calif.-based WiFi company, has raised $27.6 million in Series D funding, according to a regulatory filing. D.E. Shaw was joined by return backers like Lehman Brothers Venture Partners, Clearstone Venture Partners, BlueStream Ventures, JumpStartUp Ventures, Evercore Ventures and NeoCarta Ventures. Meru has raised over $83 million in total VC funding since its 2002 inception. www.merunetworks.com